<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[ukrishnan]]></title><description><![CDATA[Unni Krishnan]]></description><link>https://www.ukrishnan.com/insights</link><generator>RSS for Node</generator><lastBuildDate>Thu, 30 Jul 2026 13:14:22 GMT</lastBuildDate><atom:link href="https://www.ukrishnan.com/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[   . '      .]]></title><description><![CDATA[Most organizations consider Multi-Factor Authentication (MFA) one of the strongest defenses against account compromise. After all, even if an attacker steals a password, they still need the second authentication factor to gain access. But what happens when attackers stop trying to bypass MFA and instead convince users to approve it themselves? This is the essence of MFA Prompt Bombing, also known as an MFA Fatigue Attack. A Simple Yet Effective Attack Imagine you are working late when your...]]></description><link>https://www.ukrishnan.com/post/42e28cd5</link><guid isPermaLink="false">6a22baed89165fe3fa8cc415</guid><pubDate>Fri, 05 Jun 2026 13:54:37 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_1cdd122964f4487795c10e09d90b69e5~mv2.png/v1/fit/w_660,h_658,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[When “Patch It Next Sprint” Stops Being an Option]]></title><description><![CDATA[Cybersecurity has always been a race. But AI just changed the speed limit. Anthropic’s new AI model, Mythos, is creating serious conversations across the security world. Reports suggest it can identify vulnerabilities in hours - issues that might have stayed hidden for months or even years. That’s both impressive… and slightly terrifying. The Old Security Timeline Is Breaking For years, many organizations operated with a comfortable security rhythm: Vulnerability identified Ticket raised Risk...]]></description><link>https://www.ukrishnan.com/post/when-patch-it-next-sprint-stops-being-an-option</link><guid isPermaLink="false">6a1838b334554029974f1864</guid><pubDate>Thu, 28 May 2026 13:00:04 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_25cb2bfd6e4f474e854146696188b8b6~mv2.png/v1/fit/w_660,h_661,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[This Ransomware Doesn’t Follow Rules. It Writes Them.]]></title><description><![CDATA[It began like any other normal day inside a system. Files opened. Logs updated. Processes ran quietly in the background. Nothing looked wrong. Which, as usual, is when things are wrong. This ransomware wasn’t executing a neat little checklist. It wasn’t in a hurry. It was thinking. (Because apparently that’s something malware does now.) Meet PromptLock PromptLock represents a subtle but uncomfortable shift in how ransomware can work. Traditional ransomware is obedient, Predictable, and almost...]]></description><link>https://www.ukrishnan.com/post/this-ransomware-doesn-t-follow-rules-it-writes-them</link><guid isPermaLink="false">69875d5ababf74b7d0dcbb7a</guid><pubDate>Sat, 07 Feb 2026 15:54:45 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_65ae4f0e6d024481b7df580df27f5dc8~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[       ’ ...]]></title><description><![CDATA[Last week, a friend shared a simple story that perfectly explains a serious web security issue: HTTP Request Smuggling. He was at an event with two security guards at the entrance. One guard checked tickets only The other checked ID cards only A person walked in confidently, showed just an ID, and entered. Why did it work? The first guard assumed the second had checked the ID The second guard assumed the first had checked the ticket No one verified the full picture . And just like that,...]]></description><link>https://www.ukrishnan.com/post/3ab9c880</link><guid isPermaLink="false">69679acef1ba376a5bc29ab8</guid><pubDate>Wed, 14 Jan 2026 13:35:20 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_82a23ea89ad046a0869d81da009a21c9~mv2.png/v1/fit/w_588,h_588,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[“- ” -      ?]]></title><description><![CDATA[You’re replying to a critical message on your laptop. Coordinating with your team. Everything is flowing… And suddenly - logged out . Not just on WhatsApp. Potentially on any messaging app  you use via web or desktop. Why is this happening? India’s telecom regulator, Department of Telecommunications (DoT) , has proposed a new security measure: Messaging apps must remain linked to the active SIM  used during registration. Under this proposal, companion services  like WhatsApp Web or desktop...]]></description><link>https://www.ukrishnan.com/post/738ea4b0</link><guid isPermaLink="false">69662fe8fc14cd6a86cee6dd</guid><pubDate>Tue, 13 Jan 2026 11:44:51 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_b05a6a6090b944f89ff42d64538b84b4~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[     ...    .]]></title><description><![CDATA[It starts innocently.  •            “ .”   •         .  •          . No malicious intent. No policy violation - at least, not intentionally. This is  .  When AI tools are used inside an...]]></description><link>https://www.ukrishnan.com/post/309b97cb</link><guid isPermaLink="false">6964bfb24a5128abb44fac19</guid><pubDate>Mon, 12 Jan 2026 13:46:26 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_50649d5bdc6f462e841db534ea431ead~mv2.png/v1/fit/w_661,h_655,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[“ ,       ?”]]></title><description><![CDATA[The chatbot paused. Then it answered a little too honestly. What looked like a harmless question slowly revealed: internal rules safety instructions decision logic and hints of how the system was built No hacking. No malware. Just… clever questions. This is  . Think of it like this: You’re not breaking into a building - you’re chatting with the receptionist until they explain how access works.   : Once attackers understand the prompt,...]]></description><link>https://www.ukrishnan.com/post/ceb41674</link><guid isPermaLink="false">6963860ef5c800c9665243a6</guid><pubDate>Sun, 11 Jan 2026 11:18:55 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/f17fb2_9558d6673364484dae5cc8f761dca822~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator>Unni Krishnan S I</dc:creator></item><item><title><![CDATA[Elevate Your S3 Game with Batch -Generating Presigned URLs!]]></title><description><![CDATA[Are we not weary of carrying out commands one after another? Batch commands, known for their ability to automate tasks and streamline  processes, are a game-changer for both beginners seeking automation  solutions and experienced users looking to optimize their workflow. In the realm of command-line interfaces, batch commands shine as  versatile instruments, allowing users to execute a series of commands in  a sequential and automated fashion. From simple file operations to  complex system...]]></description><link>https://www.ukrishnan.com/post/elevate-your-s3-game-with-batch-generated-presigned-urls</link><guid isPermaLink="false">6572b6821aa815d6fc0a164b</guid><pubDate>Fri, 08 Dec 2023 07:07:19 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_f4a656169f4047dfa458cf9a6c069649~mv2.jpg/v1/fit/w_964,h_539,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Let’s Config]]></title><description><![CDATA[Keeping track of resource configuration is essential when it comes to managing them in Cloud infrastructure. AWS Config is a service...]]></description><link>https://www.ukrishnan.com/post/let-s-config</link><guid isPermaLink="false">62efc24064c3fe672161074e</guid><pubDate>Sun, 07 Aug 2022 14:19:18 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_11c691f71d7b4e2089d91e5d639361c6~mv2.jpg/v1/fit/w_1000,h_471,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Swap “your” Space]]></title><description><![CDATA[Let's dive a little deeper this time. We all know that every PC runs on Operating System and every OS has a specified amount of RAM...]]></description><link>https://www.ukrishnan.com/post/swap-your-space</link><guid isPermaLink="false">62ce686e09ed716b277698fd</guid><pubDate>Wed, 13 Jul 2022 07:02:08 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_ebd4e6c683e64da38a2cfaeb0bebd612~mv2.jpg/v1/fit/w_950,h_404,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA["Code your Cloud" using Cloudformation]]></title><description><![CDATA[Aren't we tired of manually creating resources in AWS? Let's consider the case of creating an Ec2 instance manually. We have to complete...]]></description><link>https://www.ukrishnan.com/post/code-your-cloud-using-cloudformation</link><guid isPermaLink="false">62c291914034148d3e02a83b</guid><pubDate>Mon, 04 Jul 2022 08:40:49 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_5591d77c05974d6eaa56f0cab8f46e0e~mv2.jpg/v1/fit/w_1000,h_630,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Userdata for Users]]></title><description><![CDATA[Once I was asked to create a remote desktop (windows instance) for the user.  After launching, the user should have a User ID for login, a...]]></description><link>https://www.ukrishnan.com/post/userdata-for-users</link><guid isPermaLink="false">62bbe1a6bb287236ffdb7510</guid><pubDate>Wed, 29 Jun 2022 14:43:47 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_728498ef37924464b75259cd61e3c135~mv2.jpg/v1/fit/w_900,h_387,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[CloudFront, a Front to S3]]></title><description><![CDATA[CloudFront is a global CDN (Content Delivery Network) that  helps the delivery of static and dynamic web contents such as .html, .css,...]]></description><link>https://www.ukrishnan.com/post/cloudfront-a-front-to-s3</link><guid isPermaLink="false">62bab5941abdea188db1887d</guid><pubDate>Tue, 28 Jun 2022 08:02:28 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/0df17d_7b64d95f17364ca3aa7330dc0868baad~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item></channel></rss>