- 掃描 ID：
- fb592db1-66e9-4a9b-83d4-083f7a474c1a已完成
- 已提交的 URL：
- https://websecuritylab.org/understanding-dns-encryption/
- 報告完成時間：
連結 · 找到 8 個
從頁面中識別的傳出連結
| 連結 | Text |
|---|---|
| https://blog.cloudflare.com/esni/ | ESNI |
| https://developers.cloudflare.com/1.1.1.1/encryption/ | 1.1.1.1 |
| https://developers.cloudflare.com/1.1.1.1/setup/ | here |
| https://twitter.com/websecuritylab/ | |
| https://linkedin.com/company/web-security-lab | |
| https://www.facebook.com/webseclab | |
| https://www.instagram.com/websecuritylab | |
| https://bit.ly/wslcommunity1 |
JavaScript 變數 · 找到 14 個
在頁面的視窗物件上載入的全域 JavaScript 變數是在函數外部宣告的變數，可從目前範圍內程式碼中的任何位置存取
| 名稱 | 類型 |
|---|---|
| onbeforetoggle | object |
| documentPictureInPicture | object |
| onscrollend | object |
| href | undefined |
| canvasJG | object |
| canvas_sg_flickity | object |
| powerkitJG | object |
| powerkit_lightbox_localize | object |
| opt_in | object |
| powerkit_sg_flickity | object |
主控台記錄訊息 · 找到 0 條
記錄到 Web 主控台的訊息
HTML
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<h1 class="cs-entry__title"><span>DNS Encryption: DNS over HTTPS (DoH) and DNS over TLS (DoT)</span></h1> </div>
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<figure class="wp-block-image alignfull size-large"><img loading="lazy" decoding="async" width="1024" height="682" src="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-1024x682.png" alt="" class="wp-image-2642" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-1024x682.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-300x200.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-768x512.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-512x341.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained-920x613.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encyrption-Explained.png 1220w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">Traditional DNS setup</figcaption></figure>
<p></p>
<div class="cnvs-block-toc cnvs-block-toc-1712718260911">
<div class="pk-toc ">
<h5 class="pk-title pk-toc-title pk-font-block">
Table of Contents
</h5>
<ol><li><a href="#what-is-dns-and-how-does-it-work">What is DNS and How Does It Work?</a></li><li><a href="#dns-over-https">DNS Over HTTPS</a><ol><li><a href="#how-dns-over-https-doh-works">How DNS over HTTPS (DoH) Works</a></li></ol></li><li><a href="#dns-over-tls">DNS Over TLS</a><ol><li><a href="#how-dns-over-tls-dot-works">How DNS over TLS (DoT) Works</a></li></ol></li><li><a href="#benefits-of-dns-encryption">Benefits of DNS Encryption</a></li><li><a href="#potential-drawbacks-and-challenges-of-dns-encryption">Potential Drawbacks and Challenges of DNS Encryption</a></li><li><a href="#similarities-and-differences-between-dns-over-https-and-dns-over-tls">Similarities and Differences between DNS over HTTPS and DNS over TLS</a><ol><li><a href="#performance-considerations">Performance Considerations</a></li><li><a href="#network-and-firewall-considerations">Network and Firewall Considerations</a></li></ol></li><li><a href="#setting-up-dns-encryption-using-cloudflare">Setting Up DNS Encryption Using Cloudflare</a></li></ol> </div>
</div>
<p>Every time you type a website address into your browser or click on a link, your computer performs a DNS (Domain Name System) lookup behind the scenes.</p>
<p>This lookup translates the human-readable domain name, like “websecuritylab.org”, into the actual IP address that computers use to identify and communicate with the website’s server.</p>
<h2 class="wp-block-heading" id="what-is-dns-and-how-does-it-work">What is DNS and How Does It Work?</h2>
<p>When you visit <a href="https://websecuritylab.org/">https://websecuritylab.org</a> the following happens:</p>
<div class="pk-content-block pk-block-shadows">
<ol class="pk-list-styled">
<li>Your browser sends a request to a recursive domain name server (DNS) that is configured on your computer. We’ll call this DNS server 1.1.1.1. If you don’t have one configured, you will be routed to your ISP’s DNS server.</li>
<li>Since 1.1.1.1 does not know the IP address of <a href="https://websecuritylab.org/">https://websecuritylab.org </a>, it queries the internet root servers(there are 13 of them), which refer 1.1.1.1 to the nameserver responsible for the .org top-level domain (TLD).</li>
<li>1.1.1.1 then asks the .org TLD name server for the authoritative name servers of the websecuritylab.org domain.</li>
<li>1.1.1.1 queries the websecuritylab.org name servers for the IP address of the full-quality domain name <a href="https://websecuritylab.org/">https://websecuritylab.org</a>. Once the server gets a response, it forwards it to the web browser.</li>
<li>The browser connects to the IP address and requests the website <a href="https://websecuritylab.org/">https://websecuritylab.org</a>.</li>
</ol>
</div>
<p>While this DNS process is essential for internet browsing, traditional DNS lookups have a potential privacy and security caveat – they are typically sent over the internet in plaintext, unencrypted form.</p>
<ul class="pk-list-styled wp-block-list"></ul>
<ul class="wp-block-list"></ul>
<p>This means that any entity monitoring your internet traffic, whether it’s your internet service provider, network admin, or even a malicious actor, can see what websites you are trying to access based on the DNS queries.</p>
<div class="wp-block-image">
<figure class="aligncenter size-large"><img loading="lazy" decoding="async" width="1024" height="682" src="https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-1024x682.png" alt="" class="wp-image-2630" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-1024x682.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-300x200.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-768x512.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-512x341.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/Protocol-920x613.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/Protocol.png 1220w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">DNS was one of the last unencrypted protocols</figcaption></figure></div>
<p></p>
<div class="wp-block-image">
<figure class="aligncenter size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-1024x576.png" alt="" class="wp-image-2765" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-1024x576.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-300x169.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-768x432.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-1536x864.png 1536w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-512x288.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-920x518.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained-1600x900.png 1600w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-explained.png 1920w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">Unencrypted DNS query of my uni’s website</figcaption></figure></div>
<p>As online privacy and security concerns continue to grow, new protocols like DNS over HTTPS (DoH) and DNS over TLS (DoT) have emerged to address this issue.</p>
<p>DNS encryption aims to safeguard users’ browsing activities by shielding DNS lookups from potential eavesdroppers, including internet service providers (ISPs) and other third parties.</p>
<hr class="wp-block-separator has-alpha-channel-opacity">
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="682" src="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-1024x682.png" alt="" class="wp-image-2638" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-1024x682.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-300x200.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-768x512.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-512x341.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption-920x613.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/DNS-Encryption.png 1220w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">DNS without Encryption</figcaption></figure>
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="682" src="https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-1024x682.png" alt="" class="wp-image-2643" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-1024x682.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-300x200.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-768x512.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-512x341.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works-920x613.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/How-it-works.png 1220w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">DNS with Encryption</figcaption></figure>
<hr class="wp-block-separator has-alpha-channel-opacity">
<h2 class="wp-block-heading" id="dns-over-https">DNS Over HTTPS</h2>
<p></p>
<figure class="wp-block-image size-large"><img loading="lazy" decoding="async" width="1024" height="576" src="https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-1024x576.png" alt="" class="wp-image-2767" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-1024x576.png 1024w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-300x169.png 300w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-768x432.png 768w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-1536x864.png 1536w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-512x288.png 512w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-920x518.png 920w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152-1600x900.png 1600w, https://websecuritylab.org/wp-content/uploads/2024/04/Screenshot-152.png 1920w" sizes="(max-width: 1024px) 100vw, 1024px"><figcaption class="wp-element-caption">Final bits of unencrypted DNS communication between Chrome and Cloudflare as DoH takes effect.</figcaption></figure>
<p>DNS over HTTPS (DoH) encrypts DNS queries and responses using the HTTPS protocol, which is the same protocol used for secure web browsing. </p>
<p>It’s an alternative to the traditional DNS protocol (UDP/TCP), which transmits DNS queries and responses in plain text, making them vulnerable to eavesdropping and manipulation.</p>
<h3 class="wp-block-heading" id="how-dns-over-https-do-h-works"><span id="how-dns-over-https-doh-works">How DNS over HTTPS (DoH) Works</span></h3>
<p>In DoH, DNS queries and responses are sent over HTTPS, just like regular web traffic. </p>
<p>The client, usually a web browser, sends encrypted DNS queries to a DoH-compatible recursive DNS resolver.</p>
<p>The resolver then decrypts the query, performs the DNS lookup, and sends the encrypted response back to the client over HTTPS.</p>
<p>The HTTPS protocol provides end-to-end encryption and authentication, protecting the privacy and integrity of the DNS communication. </p>
<p>DoH uses the same encryption and security mechanisms as HTTPS, such as TLS/SSL and certificate-based authentication.</p>
<h2 class="wp-block-heading" id="dns-over-tls">DNS Over TLS</h2>
<p>DNS over TLS (DoT) is a protocol that encrypts DNS queries and responses using the Transport Layer Security (TLS) protocol. </p>
<p>Like DoH, DoT aims to enhance the privacy and security of DNS communications by preventing eavesdropping and tampering with DNS traffic.</p>
<h3 class="wp-block-heading" id="how-dns-over-tls-do-t-works"><span id="how-dns-over-tls-dot-works">How DNS over TLS (DoT) Works</span></h3>
<p>In DoT, DNS queries and responses are sent over an encrypted TLS session between the client and a DoT-compatible recursive DNS resolver. </p>
<p>The client initiates a TLS handshake with the resolver, and once the TLS session is established, all subsequent DNS queries and responses are encrypted and transmitted over this secure channel.</p>
<p>The TLS protocol provides end-to-end encryption and authentication, ensuring the confidentiality and integrity of the DNS communication. </p>
<p>DoT typically uses TCP as the underlying transport protocol but also supports UDP.</p>
<h2 class="wp-block-heading" id="benefits-of-dns-encryption">Benefits of DNS Encryption</h2>
<ol class="pk-list-positive is-style-cnvs-list-styled wp-block-list">
<li><strong>Improved Privacy</strong>: DoH and DoT encrypt DNS queries and responses, preventing eavesdropping.</li>
<li><strong>Enhanced Security</strong>: DoH and DoT ensure the integrity of DNS communications and prevent tampering or manipulation of DNS responses.</li>
<li><strong>Censorship circumvention</strong>: They can help bypass DNS-based censorship or content filtering.</li>
</ol>
<ol class="wp-block-list"></ol>
<h2 class="wp-block-heading" id="potential-drawbacks-and-challenges-of-dns-encryption">Potential Drawbacks and Challenges of DNS Encryption</h2>
<ol class="is-style-cnvs-list-styled-negative wp-block-list">
<li><strong>Centralisation</strong>: DNS encryption requires users to trust specific DoH/DoT-compatible recursive DNS resolvers, which could lead to centralisation of DNS resolution and potential censorship or surveillance by the resolver operator.</li>
<li><strong>Content Filtering</strong>: Some organisations, such as enterprises or schools, may find it challenging to implement content filtering or parental controls when DNS queries are encrypted and bypass their local DNS servers.</li>
<li><strong>Compatibility Issues</strong>: DoH and DoT require client and server support, which may lead to compatibility issues with legacy systems or network configurations that are not compatible.</li>
<li><strong>Increased Overhead</strong>: DNS encryption adds overhead, which may result in slightly higher latency than traditional DNS, especially for initial connections or when connection reuse is not possible.</li>
<li><strong>Firewall and Network Configuration</strong>: DoT may require additional firewall and network configuration changes to allow DoT traffic, which can be challenging in some environments, especially those with strict security policies.</li>
<li><strong>It Might Not Provide Complete Privacy:</strong> Your ISP/network administrator might not be able to see what URL you’re trying to reach, but they can still perform reverse DNS lookups. While reverse DNS lookup is not as easy as it used to be due to the explosion of content delivery networks (CDN) like Cloudflare, it is still very much possible. They can also exploit vulnerabilities in the Server Name Indication (SNI) extension of the TLS protocol. <strong>The Server Name Indication (SNI) is a field in the TLS handshake that contains the hostname to which the client wants to connect</strong>. This allows the server to present the correct SSL/TLS certificate for that domain. However, the SNI field is sent in plaintext during the initial TLS handshake before the encrypted connection is established. This means that even though the actual content is encrypted with HTTPS, an ISP or other observer can still see the hostname (it is mostly domain name) you are trying to access by inspecting the SNI value. Recently, we have seen a rise in the use of <a href="https://blog.cloudflare.com/esni/" target="_blank" rel="noreferrer noopener">ESNI</a> to mitigate this vulnerability.</li>
</ol>
<ol class="wp-block-list"></ol>
<h2 id="similarities-and-differences-between-dns-over-https-and-dns-over-tls" class="wp-block-heading">Similarities and Differences between DNS over HTTPS and DNS over TLS</h2>
<p><!-- /wp:heading --></p>
<p><!-- wp:table {"hasFixedLayout":false,"className":"is-style-stripes","canvasClassName":"cnvs-block-core-table-1712718160556"} --></p>
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<tbody>
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<td> </td>
<td><strong>DNS over HTTPS</strong></td>
<td><strong>DNS over TLS</strong></td>
</tr>
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<td><strong>Encryption Protocol</strong></td>
<td>DoH uses the HTTPS protocol (HTTP over TLS/SSL) to encrypt DNS traffic.</td>
<td>DoT uses the TLS protocol directly.</td>
</tr>
<tr>
<td><strong>Transport Protocol</strong></td>
<td>DoH typically uses TCP as the underlying transport protocol.</td>
<td>DoT can use either TCP or UDP.</td>
</tr>
<tr>
<td><strong>Port Numbers</strong></td>
<td>443</td>
<td>853</td>
</tr>
</tbody>
</table>
</figure>
<p><!-- wp:heading {"level":3,"canvasClassName":"cnvs-block-core-heading-1712730019858"} --></p>
<h3 id="performance-considerations" class="wp-block-heading">Performance Considerations</h3>
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<p><!-- wp:heading {"level":4,"canvasClassName":"cnvs-block-core-heading-1712730019864"} --></p>
<h4 id="latency-and-overhead" class="wp-block-heading">Latency and Overhead<!-- wp:list {"canvasClassName":"cnvs-block-core-list-1712730019876"} --></h4>
<div class="pk-content-block pk-block-shadows">
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<li>Both DNS over HTTPS (DoH) and DNS over TLS (DoT) introduce some latency and overhead due to the encryption process and additional round trips required for establishing secure connections.<!-- /wp:list-item --> <!-- wp:list-item {"canvasClassName":"cnvs-block-core-list-item-1712730019870"} --></li>
<li>DNS over HTTPS (DoH) may have slightly higher overhead due to the additional HTTPS headers and negotiation.<!-- /wp:list-item --> <!-- wp:list-item {"canvasClassName":"cnvs-block-core-list-item-1712730019873"} --></li>
<li>DNS over TLS (DoT) may have lower latency for initial connections, as it can use UDP for the first packet exchange.</li>
</ul>
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<p><!-- wp:paragraph {"canvasClassName":"cnvs-block-core-paragraph-1712730704294"} --></p>
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<p><!-- wp:heading {"level":4,"canvasClassName":"cnvs-block-core-heading-1712730019882"} --></p>
<h4 id="caching-and-connection-reuse" class="wp-block-heading">Caching and Connection Reuse</h4>
<div class="pk-content-block pk-block-shadows">
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<li>DNS over HTTPS (DoH) can benefit from existing HTTPS caching mechanisms and connection reuse in web browsers, which can improve performance for subsequent requests.<!-- /wp:list-item --> <!-- wp:list-item {"canvasClassName":"cnvs-block-core-list-item-1712730019889"} --></li>
<li>DNS over TLS (DoT) may have more limited caching and connection reuse capabilities, depending on the implementation and the underlying transport protocol (TCP or UDP).</li>
</ul>
<p><!-- /wp:list-item --></p>
<p><!-- /wp:list --></p>
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<h3 id="network-and-firewall-considerations" class="wp-block-heading">Network and Firewall Considerations</h3>
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<li id="network-and-firewall-considerations" class="wp-block-heading">DNS over HTTPS (DoH) can leverage existing HTTPS infrastructure and may be more easily deployable in environments where HTTP(S) traffic is allowed.</li>
<li>DNS over TLS (DoT) may require additional firewall and network configuration changes to allow DoT traffic on specific ports.</li>
</ul>
<p><!-- /wp:list-item --></p>
<p><!-- /wp:list --></p>
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<p><!-- wp:heading {"canvasClassName":"cnvs-block-core-heading-1712730019907"} --></p>
<h2 id="setting-up-dns-encryption-using-cloudflare" class="wp-block-heading">Setting Up DNS Encryption Using Cloudflare</h2>
<p><!-- /wp:heading --></p>
<p><!-- wp:paragraph {"canvasClassName":"cnvs-block-core-paragraph-1712730019910"} --></p>
<p>Cloudflare’s <a href="https://developers.cloudflare.com/1.1.1.1/encryption/" target="_blank" rel="noreferrer noopener">1.1.1.1</a> recursive DNS resolver supports DNS over TLS (DoT) and DNS over HTTPS (DoH).</p>
<p><!-- /wp:paragraph --></p>
<p><!-- wp:paragraph {"canvasClassName":"cnvs-block-core-paragraph-1712730019914"} --></p>
<p>The documentation on how to set it up can be found <a href="https://developers.cloudflare.com/1.1.1.1/setup/" target="_blank" rel="noreferrer noopener">here</a>.</p>
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<li><div class="wp-block-latest-posts__featured-image alignleft"><a href="https://websecuritylab.org/china-infiltrates-us-telecom-surveillance-system/" aria-label="Chinese Hackers Infiltrate U.S. Telecommunications Surveillance Systems"><img loading="lazy" decoding="async" width="150" height="150" src="https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-150x150.webp" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" style="" srcset="https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-150x150.webp 150w, https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-80x80.webp 80w, https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-600x600.webp 600w, https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-148x148.webp 148w, https://websecuritylab.org/wp-content/uploads/2024/10/China-Hacks-USA-Telecom-Infrastucture-296x296.webp 296w" sizes="(max-width: 150px) 100vw, 150px"></a></div><a class="wp-block-latest-posts__post-title" href="https://websecuritylab.org/china-infiltrates-us-telecom-surveillance-system/">Chinese Hackers Infiltrate U.S. Telecommunications Surveillance Systems</a><div class="wp-block-latest-posts__post-author">by <a href="https://websecuritylab.org/author/david-odes/">David Odes</a></div><time datetime="2024-10-06T11:13:56+00:00" class="wp-block-latest-posts__post-date">October 6, 2024</time></li>
<li><div class="wp-block-latest-posts__featured-image alignleft"><a href="https://websecuritylab.org/comptia-security-vs-cisco-cyberops/" aria-label="CompTIA Security+ vs Cisco CyberOps: A Comprehensive Comparison"><img loading="lazy" decoding="async" width="150" height="150" src="https://websecuritylab.org/wp-content/uploads/2024/04/Security-vs-CyberOps-1024x683-1-150x150.png" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" style="" srcset="https://websecuritylab.org/wp-content/uploads/2024/04/Security-vs-CyberOps-1024x683-1-150x150.png 150w, https://websecuritylab.org/wp-content/uploads/2024/04/Security-vs-CyberOps-1024x683-1-148x148.png 148w, https://websecuritylab.org/wp-content/uploads/2024/04/Security-vs-CyberOps-1024x683-1-296x296.png 296w" sizes="(max-width: 150px) 100vw, 150px"></a></div><a class="wp-block-latest-posts__post-title" href="https://websecuritylab.org/comptia-security-vs-cisco-cyberops/">CompTIA Security+ vs Cisco CyberOps: A Comprehensive Comparison</a><div class="wp-block-latest-posts__post-author">by <a href="https://websecuritylab.org/author/david-odes/">David Odes</a></div><time datetime="2024-04-04T22:51:24+00:00" class="wp-block-latest-posts__post-date">April 4, 2024</time></li>
<li><div class="wp-block-latest-posts__featured-image alignleft"><a href="https://websecuritylab.org/crowdstrike-biggest-it-outage-in-history/" aria-label="CrowdStrike: How One Company Caused The Biggest IT Outage In History"><img loading="lazy" decoding="async" width="150" height="150" src="https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-150x150.png" class="attachment-thumbnail size-thumbnail wp-post-image" alt="" style="" srcset="https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-150x150.png 150w, https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-80x80.png 80w, https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-600x600.png 600w, https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-148x148.png 148w, https://websecuritylab.org/wp-content/uploads/2024/07/CrowdStrike-296x296.png 296w" sizes="(max-width: 150px) 100vw, 150px"></a></div><a class="wp-block-latest-posts__post-title" href="https://websecuritylab.org/crowdstrike-biggest-it-outage-in-history/">CrowdStrike: How One Company Caused The Biggest IT Outage In History</a><div class="wp-block-latest-posts__post-author">by <a href="https://websecuritylab.org/author/david-odes/">David Odes</a></div><time datetime="2024-07-19T19:05:00+00:00" class="wp-block-latest-posts__post-date">July 19, 2024</time></li>
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