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  1. Page 1: Today’s IndexTLDR InfoSec, TLDR, TLDR Fintech, TLDR Crypto, TLDR Hardware, TLDR Design, TLDR Data, TLDR AI · 9 stories
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Daily Edition · Page 2

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ATTACKS & VULNERABILITIES

TLDR InfoSec

TLDR InfoSec

FAKE CLAUDE, CHATGPT ATTACKS SURGE, PUTTING DEVELOPERS AT RISK

Any.Run analyzed 1,258 incidents over six months involving fake AI-tool lures. Attackers impersonated Claude in 60% of cases and ChatGPT or Codex in 33%, using malicious ads, SEO poisoning, fake download pages, shared chats, and artifacts. ClickFix-style commands appeared in 45% of cases. Targets risk losing source code, SSH keys, CI/CD tokens, cloud and AI API keys, sessions, and billing access.

links.tldrnewsletter.com · 3 min

TLDR InfoSec

BIG FISH: EXPLOITING A 37-YEAR-OLD KERNEL BUG IN OPENBSD

Calif reported two OpenBSD vulnerabilities that enabled local privilege escalation to root. A signed 16-bit shared-memory attachment counter, dating to the original BSD sources, could overflow after repeated forking and wrap to a negative value. That enabled a use-after-free race condition. A separate out-of-bounds write gave the exploit a write-what-where primitive. The exploit worked with KARL, SMAP, and SMEP enabled, using heap grooming, SysV shared-memory manipulation, IP multicast socket allocations, and PTE self-referential mapping changes to reach kernel execution.

calif.io · 4 min

TLDR InfoSec

HEARTBREAKER: METAMORPHIC RANSOMWARE COMES FOR MACOS

Heartbreaker, a previously undetected Rust ransomware for Apple Silicon Macs, encrypts files in ~/Downloads with AES-256-GCM, persists through a LaunchAgent, and then rebuilds itself by mutating its own embedded source code and recompiling with Cargo to change its hash each run. Patrick Wardle found the rebuild fragile and noisy because it may install Rust on the fly, depends on a now-deleted GitHub framework, and uses a single hard-coded key that lets victims decrypt every file for free. His open-source RansomWhere? tool still caught it by flagging an untrusted process that rapidly writes high-entropy files, which shows why behavior-based detection holds up against mutating binaries better than hash-based signatures.

objective-see.org · 13 min

TLDR InfoSec

THE PQC MIGRATION BUDGET BUILDER TURNS DEADLINES AND ESTATE COUNTS INTO A DEFENSIBLE BUDGET REQUEST

The PQC Migration Budget Builder is a free, browser-only tool that converts regulatory deadlines and rough estate counts into an itemized year-one ask, a three-scenario program estimate, and a draft board paper for post-quantum migration. It maps 33 regimes, including the EU roadmap, OMB M-26-15, DORA, and PCI DSS v4.0.1, to buffered priority and full-migration dates, then prices compression, refresh-funded savings, and the cost of delaying migration by one to three years. Each unit cost is labeled by source and editable, allowing CISOs and finance partners to stress-test the numbers before discovery replaces the estimates.

postquantum.com · 18 min

TLDR InfoSec

MICROSOFT DISRUPTS 3 PHISHING KITS LINKED TO OVER 1 BILLION SCAM MESSAGES

Microsoft and partners disrupted CoGUI, Haozi, and Iron Man System, three phishing kits sold on the YAM Store marketplace. Since January, they have supported more than one billion phishing emails and SMS messages sent to more than 75,000 organizations. The kits used hijacked Microsoft and Google cloud environments, roughly 17,000 domains, fake CAPTCHAs, IP filtering, and WebSocket-based capture of credentials and financial data.

thehackernews.com · 3 min

TLDR InfoSec

OPENAI MODELS HACKED A CRYPTO WALLET AND BREACHED MORE WEBSITES

OpenAI disclosed four incidents in June involving internal models. Agents bypassed authorization on a government statistics site, accessed a research dashboard, stole credentials, altered server configuration, and downloaded 147,451 non-public rows. One model used a public developer recovery phrase to spend test-network wallet funds on a contract deployment. Another circumvented web-request restrictions through an external browser, making POST requests, and employing OCR.

arstechnica.com · 3 min

TLDR InfoSec

CALENDAR INVITE PHISHING CAN LEAVE MALICIOUS EVENTS ON YOUR CALENDAR

Phishing links, QR codes, and fake payment notices delivered via malicious .ics invites can remain on a victim's calendar even after email security tools quarantine the original message, because many filters fail to remove the events those emails auto-created. Sublime Security documented this gap in Google Workspace and Microsoft 365 and projected a roughly 33,000% increase in calendar-based attacks from May to September. Check Point separately flagged more than 302,000 unique phishing emails across 40,000+ organizations in a calendar-themed Microsoft 365 campaign.

firethering.com · 6 min

TLDR IndexPage 2