BragJack attacks hijack AI browser agents through malicious extensions

2026-09-20T01:23:22Z•cd143366e059ca618cef3b05be009e4ae5f3ecddad7cadae45edf86d04e3040d
AI-agent-hijackingAI-securityAndroid-malwareClickFixGitHub-abuseMicrosoft-365Microsoft-TeamsNorth-Koreacritical-vulnerabilitycryptocurrency-theftdata-breachinfostealermalicious-browser-extensionmalwarephishingprivilege-escalationransomwareremote-access-trojanserver-vulnerabilitysupply-chain-attack

What happened

The feed highlights active and emerging cyber threats, including AI browser-agent hijacking through malicious extensions, a large-scale North Korean cryptocurrency theft campaign, ransomware-site compromise, exploitation of a Gyazo server flaw affecting 23.6 million records, a new Rapuncel infostealer distributed through fake GitHub repositories, critical Check Point management-system vulnerabilities, Android RAT activity, and a Brevo supply-chain attack distributing ClickFix malware. It also covers security advisories, product mitigations, and AI-agent safety concerns.

Why it matters

A reviewed impact interpretation has not been published for this record.

Evidence and limitations

Source ID
bleepingcomputer
Record identifier
cd143366e059ca618cef3b05be009e4ae5f3ecddad7cadae45edf86d04e3040d
Enrichment time
2026-09-20T01:23:22Z
AI-assisted enrichment
Yes

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