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<div style="display: none; max-height: 0px; overflow: hidden;">Google has fixed CVE-2026-58704, an actively exploited Pixel modem authorization flaw. Attackers can bypass permission checks and escalate privileges β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β β </div>
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<h1><strong>TLDR Information Security <span id="date">2026-09-21</span></strong></h1>
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<div style="text-align: center;"><span style="font-size: 36px;">π</span></div></div>
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<h1><strong>Attacks & Vulnerabilities</strong></h1>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fthehackernews.com%2F2026%2F09%2Fgyazo-breach-exposes-2362-million-user.html%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/h-LLHfXSFKbW6ODJ3xHn2l_6hES_-pbfO_6Cem-fEb4=452">
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<strong>Gyazo Breach Exposes 23.62 Million User Records and 490 Million Image Metadata Records (3 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Gyazo's upload server flaw let an attacker run commands and access its database. Exposed data includes 23.62 million user records, password hashes, session IDs, integration tokens, and 490 million image metadata records. Leaked image IDs may expose linked captures. Helpfeel fixed the flaw, blocked access routes, and urged password changes.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.theregister.com%2Fsecurity%2F2026%2F09%2F16%2Fgoogle-pixel-phones-pwned-in-zero-click-attacks%2F5296936%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/v7KPt6YD3GERue8oCQgWgbvRPvIIeYqNeUgwAn0_h_I=452">
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<strong>Google Pixel phones pwned in zero-click attacks (2 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Google has fixed CVE-2026-58704, an actively exploited Pixel modem authorization flaw. Attackers can bypass permission checks and escalate privileges without user interaction. CISA added it to its Known Exploited Vulnerabilities catalog and ordered federal agencies to patch by September 19. Google disclosed limited, targeted exploitation but provided no attack details and asked users to update supported Pixel devices immediately.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2Fpi03Vl/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/tdmd0oYakCMsEdb8vZ4_eyPRi5HAELtffeOt-89k7hE=452">
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<strong>Fake LastPass Authenticator GitHub Repos Push New Rapuncel Infostealer (2 minute read)</strong>
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Security researchers uncovered a new malware campaign that utilizes GitHub repos to impersonate LastPass Authenticator and at least 39 other well-known products. The campaign utilizes a legitimate Microsoft Visual Studio CoreCLR Debugger, which loads a malicious DLL. The DLL deploys a previously undocumented infostealer and an EDR and antivirus killer that terminates a hardcoded list of 145 EDR or antivirus products.
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<div style="text-align: center;"><span style="font-size: 36px;">π§ </span></div>
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<h1><strong>Strategies & Tactics</strong></h1>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fsemgrep.dev%2Fblog%2F2026%2Fglm-53-delivers-opus-48-level-cybersecurity-results-at-a-fraction-of-the-cost%2F%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/beXZ0UpJ9LL7iHpqbcexyMPX_WnAnxikrIkn4C6gsNQ=452">
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<strong>GLM-5.3 Delivers Opus 4.8-Level Performance at a Fraction of the Cost (4 minute read)</strong>
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Semgrep benchmarked the new Grok models and GLM-5.3 on their standard IDOR vulnerability-finding benchmark. They found that Grok 4.6 Exacto roughly matched Opus 4.7's F1 score at less than a third of the cost. GLM-5.3 was able to compete with Opus 4.8 at one seventh of the cost.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fmsil.re%2Fposts%2Freversing-malwarebytes-browser-guard.html%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/12JEg4wzaQj4H0ZuvMDzuL96Wl381K7Hv8SQDVa4Sc0=452">
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<strong>Reverse Engineering Malwarebytes Browser Guard (36 minute read)</strong>
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After the author's legitimate site got flagged as a scam by Malwarebytes Browser Guard, they took a deep dive into the source code to identify what caused it. This post walks through the several layers Browser Guard uses, including bloom filters, heuristic rules, a malware URL database, a download file classifier, specialized rules for specific attacks like ClickFix, and remote false-positive checking using Hubble. The bigger issue, the author noted, is that the extension ships with a debug interface that can be used to disable heuristics.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.scworld.com%2Fimplementation-guides%2Fhow-to-build-an-ot-security-operating-model%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/H5XYZWnhNOhf3fEcODFQxwXRXQIkSLfAm0_BXmCaOSg=452">
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<strong>How to build an OT security operating model (10 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
An implementation guide breaks an OT security program into six components, beginning with asset discovery and process context mapping that tie every device to the operational process it supports. Availability and process safety outrank confidentiality here, so access boundaries, monitoring, incident response, and recovery each require joint sign-off from operations before deployment. Ownership belongs to a cross-functional executive such as a CISO or VP of Operations, with NERC CIP and NIST SP 800-82 treated as checkpoints rather than as the program design itself.
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<div style="text-align: center;"><span style="font-size: 36px;">π§βπ»</span></div>
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<h1><strong>Launches & Tools</strong></h1>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2FzYfPsx/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/AWj2pBbRlj8zrS0Vdwh37MSGV2YM9lIxU7g-MjJeo24=452">
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<strong>Are pentests obsolete in the AI era? (Sponsor)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
You can now get the depth of a pentest at the frequency of a scan. Does that mean pentests are dead? This <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2FzYfPsx/2/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/2_j4q-BdyopiDqbsQnezjB19pKHPrLQx1FDSOexO1M4=452" rel="noopener noreferrer nofollow" target="_blank"><span>Intruder blog</span></a> lays out the short-term, mid-term, and long-term implications of AI-driven pentesting. See what the economics, frontier AI developments, and threat landscape are all pointing to. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2FzYfPsx/3/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/nL0FL6Ek4myZDGhNtQQHM74fDwMEV1KZsCzi2HXZhBk=452" rel="noopener noreferrer nofollow" target="_blank"><span>Read the blog</span></a>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.com%2Fairbus-cert%2Fditto%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/uiXFioBhnrQYW0MvaoBb3623W9pvpMkeQby_hmOfQBc=452">
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<strong>Ditto (GitHub Repo)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Ditto is a tree-sitter-based PowerShell and JavaScript obfuscatory.
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<span>
<strong>Natural Language Nmap (GitHub Repo)</strong>
</span>
</a>
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<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Natural language nmap (nmap-nl) is a lightweight, local command-line inference tool that translates natural language into raw nmap commands and executes them locally using a locally-hosted, fine-tuned Gemma-3-270M model.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.com%2FIceMoonHSV%2FTATS%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/n4hm5wHZ3NJqHxP78EgRCM1EZAtbCdBEt4-Z33QEM0s=452">
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<strong>TATS (GitHub Repo)</strong>
</span>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Token Analysis and Tracking System (TATS) allows users to track OAuth 2.0, OIDC, and Microsoft Entra ID tokens across captured network traffic by ingesting Burp Suite XML exports, mitmproxy flow files, or live Chrome DevTools Protocol streams and serving an interactive web dashboard.
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<div style="text-align: center;"><span style="font-size: 36px;">π</span></div></div>
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.gadgetreview.com%2Fhackers-cracked-a-flock-camera-here-is-what-was-inside%3Futm_source=tldrinfosec/1/010001a0c41b48bb-7a9a506f-2f9e-43f3-a022-e095d771a371-000000/Ihb24IYCNcZZ48UkAdBxheXD5Klm3lzOtbA6aTeDXcU=452">
<span>
<strong>Hackers Cracked a Flock Camera. Here Is What Was Inside. (3 minute read)</strong>
</span>
</a>
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<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
A removed Flock camera exposed 1.6 million images and records of 50,200 vehicles over 21 days. Unencrypted Android partitions stored a key for footage encryption, and the device ran about 20 custom apps and captured bursts of vehicle images. Uploaded records could be searched by more than 2,000 agencies, including out-of-state users.
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