Nethemba | We care about your security

We care about
your security.

Nethemba is a leading Slovak IT security firm specialized in web security, penetration testing, and RFID security audits. Since 2007, we’ve been securing businesses with cutting-edge research and expertise, trusted by companies worldwide.

We care about
your security.

Nethemba is a leading Slovak IT security firm specialized in web security, penetration testing, and RFID security audits. Since 2007, we’ve been securing businesses with cutting-edge research and expertise, trusted by companies worldwide.

BLOG

Facebook

Nethemba
Nethemba22 hours ago
Researchers at the University of Massachusetts Amherst have demonstrated an attack that revives expired Visa contactless credit cards for real in-store purchases by rewriting the expiration date a point-of-sale (POS) terminal reads over near-field communication (NFC), without breaking any of the card's cryptography.
The attack, which the researchers named "Zombie Card," requires physical possession of the expired card or sustained NFC proximity to it, plus a man-in-the-middle (MitM) relay positioned between the card and the terminal.
https://thehackernews.com/2026/08/zombie-card-attack-can-revive-expired.html
Nethemba
Nethemba2 days ago
auditician - Automated security auditing for Claude Code.
https://github.com/defuse/auditician
Nethemba
Nethemba3 days ago
Kamery pro čtení registračních značek aut jsou v ulicích běžné. Nový systém SignalTrace k nim ale přidává senzor, který zároveň zachytí signály z telefonů, hodinek a dalších zařízení uvnitř projíždějícího auta. Po pár týdnech tak vznikne otisk zařízení, která se opakovaně objevují u téže značky.
https://www.chip.cz/bezpecnost/digitalni-otisky-prstu