Technology News and Headlines

Rakuten Viber CISO/CTO on Balancing Encryption, Abuse Prevention, and Platform Resilience

Rakuten Viber’s CISO/CTO Liad Shnell says the messenger is now critical infrastructure, so security priorities extend beyond confidentiality to availability, integrity and abuse resilience. The platform ships end‑to‑end encryption by default and relies on AI‑driven analysis of metadata, behavioral signals and rate limits to combat scams, deep‑fake fraud and coordinated influence without inspecting message content. Viber’s incident‑response playbooks are stress‑tested for disinformation and impersonation, emphasizing rapid detection, automated first‑response and minimal user friction. Success is measured by user‑harm metrics such as blast radius and account‑takeover rates rather than vanity counts of blocked messages.