Your uncle’s frozen Mac says it’s infected after viewing a Google ad. Now what?

Ars Technica security feed covering active cyber threats, including malvertising and ClickFix social engineering, exploit kits targeting Chrome and Windows, ransomware and supply-chain attacks, credential and personal-data breaches, BGP hijacking, surveillance-camera compromise, AI-agent and LLM security weaknesses, and emerging cryptographic threats to RSA. The collection includes several high-impact incidents affecting thousands to millions of accounts or records, but most entries lack specific vulnerability identifiers.