Discord Sleuths Gained Unauthorized Access to Anthropic’s Mythos
ID: 0f5e97f3-f7f0-51ff-abb7-19b74cbe975d
STIX ID: report--0f5e97f3-f7f0-51ff-abb7-19b74cbe975d
Feed Name: WIRED Security
Date Published: 2026-04-25
Date Updated: 2026-04-26
Author: Matt Burgess, Lily Hay Newman, Andy Greenberg
This roundup covers multiple high-impact security items: Mozilla used Anthropic’s Mythos to discover and fix 271 vulnerabilities in Firefox 150; Citizen Lab documented SS7/telecom-protocol abuse by surveillance vendors to track targets; researchers attributed and cracked Fast16 malware with likely nation-state origins; a North Korean-linked group used AI-enabled tactics to steal up to $12M; UK Biobank-related datasets covering ~500k people were found listed for sale; DOJ charged operators of human-trafficking-facilitated scam compounds; and an iOS notification storage issue exposed Signal message content until Apple issued a patch.
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