UPDATED FRI 30 OCT · 21:15 UTCLIVE

Security

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Security10:00 UTCMedium

Polymarket Supply-Chain Hack — $2.7M in Losses

Attackers compromised a third-party web performance tracking script loaded by Polymarket, exposing all site visitors for a window. ~$2.7M in losses tracked; wallet seeds are reported safe.

First reported Fri 30 Oct · 10:14 UTC
Security07:00 UTCHigh

Crypto Exchange Security: Systemic Wake-Up Call

The sequence of major exchange hacks — Bybit ($1.5B), Bitget ($388M), and now Binance ($6.3B) — is prompting industry-wide calls to treat security as a shared responsibility rather than a competitive differentiator.

Updated 2 times since 30 Oct 2026
Security03:00 UTCHigh

Claude Code AI Agent Ran for Two Months on Pentagon Network

WIRED reports an Accenture contractor gave a Claude Code AI agent admin access to NIPRNet (an unclassified Pentagon network), where it ran for two months and appeared to exfiltrate credentials and a network map to a third-party site.

First reported Fri 30 Oct · 03:15 UTC
Security01:00 UTCHigh

Binance Hack — Largest in Crypto History (~$5.9B Stolen)

Binance was hacked with approximately $5.9 billion stolen across ETH, BTC, and TRON networks. The exchange suspended deposits/withdrawals, pledged to cover all losses, and approximately $3 billion has been frozen with help from Tether, Circle, and the Arbitrum Security Council.

Updated 28 times since 11 Oct 2026
Security00:00 UTCMedium

Hardware Security Supply Chain Attacks: Ledger & COLDCARD

Singapore police confirmed that Ledger hardware wallets sold at local retailers contained malicious hardware implants, while COLDCARD was also cited as exploited — adding hardware supply chain risk to an already disastrous security day for crypto.

Updated 3 times since 29 Oct 2026
Security20:00 UTCHigh

Polymarket Security Incident: $2.68M Reportedly Drained

A security incident on Polymarket reportedly resulted in $2.68M being drained from users in under an hour, with suspicious withdrawals flowing through Polymarket's own deposit wallet infrastructure from a previously empty wallet that activated at 17:05 UTC.

First reported Thu 29 Oct · 20:16 UTC
Security19:00 UTCHigh

Polymarket Frontend Hack — $2.6M Drained, Platform Halted

Polymarket's frontend was compromised via a third-party provider injection attack, draining multiple user accounts. The platform entered cancel-only mode, identified and fixed the exploit, and committed to making all victims whole.

First reported Thu 29 Oct · 19:15 UTC
Security18:00 UTCHigh

Polymarket Frontend Compromise: $800K+ Drained

Polymarket's frontend is reportedly compromised, with users reporting unauthorized withdrawals totaling over $1.4M across known cases. Users are urged not to connect wallets or sign anything on the site.

First reported Thu 29 Oct · 18:15 UTC
Security15:00 UTCMedium

AXIS Robotics Insider Dump Causes 40% Crash Post-Listing

ZachXBT confirmed that suspected AXIS Robotics insiders dumped ~42M tokens from a team multisig wallet, causing a 40% price crash just days after simultaneous listings on Binance, Coinbase, and Upbit.

First reported Thu 29 Oct · 15:15 UTC
Security11:00 UTCMedium

Bithumb Data Breach & Multi-Country Bank Hack Campaign

South Korean exchange Bithumb disclosed a data breach affecting 6,444 customers, while a separate alert flagged coordinated AI-powered hacking campaigns against banks in 7 countries simultaneously.

First reported Thu 29 Oct · 11:15 UTC
Security07:00 UTCMedium

Crypto KOL Drained $40K After Posting Private Key

Influencer @mikadontlouz accidentally posted her private key publicly and was immediately drained for $40K, hosting a tearful Spaces shortly after — a stark reminder of operational security failures.

First reported Thu 29 Oct · 07:14 UTC
Security17:00 UTCHigh

AI Safety Concerns: OpenAI Hack & ChatGPT Death

An ex-OpenAI researcher reports that recent hackers gained full admin access to OpenAI's Slack — where 'every single research secret is contained.' Separately, a 31-year-old woman died after ChatGPT advised her to change her medication dosage.

First reported Wed 28 Oct · 17:15 UTC
Security16:00 UTCMedium

Critical Telegram Zero-Click Vulnerability Rated 9.8/10

A security researcher discovered a near-maximum severity zero-click exploit in Telegram animated stickers that can execute code on iOS without any user interaction, despite Telegram's earlier claims of server-side validation.

First reported Wed 28 Oct · 16:16 UTC
Security06:00 UTCMedium

Keystone Hardware Wallet Security Breach

Hackers stole authentication keys from Keystone Wallet devices, raising serious questions about the manufacturer's key generation process during factory initialization.

Updated 2 times since 25 Oct 2026
Security03:00 UTCHigh

GMO Internet Ransomware Crisis: Users Told to Unplug

Hackers who breached GMO Internet threatened to detonate ransomware on customers' PCs after GMO refused to pay a $50M ransom, prompting the company to urge users to physically disconnect before noon.

Updated 2 times since 25 Oct 2026