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Week in review: Claude Mythos finds 271 Firefox flaws, Vercel breach

ID: 2b0516cf-80a5-57e6-a012-a3a563d895f9

STIX ID: report--2b0516cf-80a5-57e6-a012-a3a563d895f9

Feed Name: Help Net Security

Threat Score
70/100

Date Published: 2026-04-26

Date Updated: 2026-05-11

Author: Help Net Security

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This weekly cybersecurity roundup compiles recent high‑impact news: active malware campaigns (NGate NFC targeting Android, new Mirai variants), an APT using collaboration platforms (GopherWhisper), multiple breaches (Vercel, France Titres), exploited or flagged vulnerabilities (Cisco SD‑WAN CVE-2026-20133, Apple CVE-2026-28950), rising ransomware costs, and emerging AI-related attack vectors affecting CI/CD, voice phishing, and prompt-injection risks.

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