https://sudonull.com/bypassing-2fa-in-the-bank-brute-force-attack
Pentest breakdown: how a bank's 4-digit SMS code is cracked in 35 sec without limits. API analysis, JS exploit, CWE-307, recommendations. For developers and pentesters.
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https://sudonull.com/2fa-saves-85-of-x-accounts-from-botnets
Analysis of a real botnet: how two-factor authentication stopped 85% of attacks on X. Facts, statistics, and recommendations for protecting credentials. Learn why 2FA is mandatory in 2026.
https://sudonull.com/ai-zero-day-google-discovers-machine-created-exploit
Google confirms AI-created zero-day in criminal scheme. Learn how the vulnerability bypassed 2FA and what it means for your security. Read the report.
https://sudonull.com/password-strength-calculations-for-developers
Learn the real password strength from calculations: from 5-digit PIN to passphrase. Recommendations on Argon2 hashing, throttling, and 2FA for middle/senior dev. Check your system.
https://sudonull.com/ebpf-rootkit-in-linux-db-leak-via-contractor
Breakdown of a real eBPF rootkit case: symptoms, detection with bpftool, attack chain via contractor. Protection measures for Linux servers: 2FA, bpf() audit, Falco. Learn how to prevent PII exfiltration.
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