🚨 Major privacy breach uncovered: #COSIC researchers contributed to a study revealing how #Meta & #Yandex covertly de-anonymize #Android users via abuse of localhost communication. Even private mode isn’t safe. 📖 Read more: #privacy #tracking #KULeuven.

Axel Mertens successfully defended his PhD thesis yesterday, congratulations! 🎉🥳🍾

Join millions who have switched to Grok.

RT @InsiderPhD: Absolutely crazy. This malware checks if Claude or Claude code is installed and invokes it to exfiltrate data from differen….

🔐 You're invited! Join us on 18 Nov 2025 in Leuven (Belgium) for the #IEEE Milestone Award Ceremony, honoring #Rijndael, the Belgian cipher selected as #AES, protecting billions worldwide. Register (free) by 25 Oct: #CyberSecurity #Cryptography

How do we migrate the digital ecosystem to withstand the #quantum threat? Join policymakers, industry leaders & researchers in Athens 🇬🇷 at the #PQCSA Workshop (12 Sept, co-located with #ENISA Cyber #EUnnovate 2025). 🔗 Register now: #PostQuantum #PQC

RT @Lhree: [Revised] Black-box Collision Attacks on Widely Deployed Perceptual Hash Functions (Diane Leblanc-Albarel and Bart Preneel) htt….

RT @Lhree: [Revised] Leuvenshtein: Efficient FHE-based Edit Distance Computation with Single Bootstrap per Cell (Wouter Legiest and Jan-Pie….

RT @kostascrypto: What can a blockchain do to protect its users and meet upcoming quantum safety recommendations from all security agencies….

Kostas Kryptos Chalkias (@kostascrypto) will be giving a talk on "Preparing Blockchains for Quantum Threats" at our #PQC workshop in Athens, register now:

RT @bpreneel1: Big data means big breaches.

The COSIC Seminar "OPTIMSM: FPGA hardware accelerator for Zero-Knowledge MSM" by Xander Pottier & Thomas de Ruijter (COSIC) is now online: #cosicseminar.

RT @brussels_report: "Surveillance of chats is a terrible idea" - New article by Quinten Jacobs and Adriaan Jacobs on EU plans for #chatcon….

Proud moment at #CRYPTO 2025! .“KLPT²: Algebraic Pathfinding in Dimension Two and Applications” received the Best Paper Award. 🏆.Co-authored by COSIC’s Wouter Castryck & Thomas Decru (presenter). Read it here:

Our research expert Dave Singelée @vrtnws on the #OrangeBelgium #cyberattack: Beware of targeted phishing using personal data to trick victims into revealing more info. Remain vigilant. #orange #phishing.

We’re bringing the #quantum challenge to Athens! 🇬🇷.Our workshop on Tackling the Quantum Threat (Sept 12, co-located with #ENISA Cyber #EUnnovate) just added 4 speakers. Program live now: #PQC #DigitalEurope #PQCSA

Today at #CRYPTO in Santa Barbara: Erik Pohle presenting "Row Reduction Techniques for n-Party Garbling". Want to know more? Check out his brand new blog post:

Amit Singh Bhati (@kr_ams) presenting "Breaking the IEEE Encryption Standard -- XCB-AES in Two Queries" at #crypto 2025 in Santa Barbara.

RT @Lhree: [Revised] Sonikku: Gotta Speed, Keed! A Family of Fast and Secure MACs (Amit Singh Bhati and Elena Andreeva and Simon Mller and….

"Het controversiële ‘chat control’-voorstel: ‘Voor iemand als Viktor Orbán is dit een droom’" @Humo

This week in COSIC. We have one seminar for you: "OPTIMSM: FPGA hardware accelerator for Zero-Knowledge MSM" by Xander Pottier & Thomas de Ruijter (COSIC) tomorrow:

Erik Pohle presents "Row Reduction Techniques for n-Party Garbling" at #CRYPTO 2025 (Santa Barbara, Tuesday). The work cuts communication cost of multi-party garbled circuits - read more on our blog: