A hacker has released more than 400 credit card numbers allegedly belonging to Saudi Arabian citizens More than 400 credit card numbers claimed to belong to Saudi Arabian citizens were released on Tuesday in apparent retaliation for the release of 15,000 active credit card numbers of Israelis last week.The data was posted publicly on Pastebin” by someone claiming to be an Israeli called Omer Cohen, or “0xOmer” on Twitter. The data includes credit-card numbers and expiration dates. Some entries contain the cardholder’s name.0xOmer also wrote on Twitter that the CVCs, or the three-digit code on the back of the card, would not be released. The code is usually needed to conduct a transaction with an e-commerce vendor over the internet.One of the victims contacted by e-mail said the credit card number released with his email address was accurate. The victim, who lives in Saudi Arabia, said he had not had time to cancel the card yet. On Saturday, Israel’s Deputy Foreign Minister Danny Ayalon equated cyber attacks with terrorism, saying the country is prepared to respond. The comments followed the release last weeks of tens of thousands of credit card numbers of Israeli citizens by a hacker going by the name “oxOmar.” However, Israel’s Banking Supervision Department said last week that only 15,000 of the numbers were active. On Monday, Ayalon’s personal website was targeted by hackers. His website briefly redirected to a different domain containing Arabic messages and the note “Hacked by Foxy + TKL and Gaza HaCKeR Team.”Although efforts to contact Ayalon’s office were unsuccessful, he wrote on his Facebook page on Monday that “this morning some Muslim extremists hacked into my website to try and prevent me from continuing to do my work on behalf of the State of Israel, especially my online public diplomacy. We will not be weakened nor silenced by such attempts!”Send news tips and comments to jeremy_kirk@idg.com Related content feature Top cybersecurity M&A deals for 2023 Fears of recession, rising interest rates, mass tech layoffs, and conservative spending trends are likely to make dealmakers cautious, but an ever-increasing need to defend against bigger and faster attacks will likely keep M&A activity steady in By CSO Staff Sep 22, 2023 24 mins Mergers and Acquisitions Mergers and Acquisitions Mergers and Acquisitions brandpost Unmasking ransomware threat clusters: Why it matters to defenders Similar patterns of behavior among ransomware treat groups can help security teams better understand and prepare for attacks By Joan Goodchild Sep 21, 2023 3 mins Cybercrime news analysis China’s offensive cyber operations support “soft power” agenda in Africa Researchers track Chinese cyber espionage intrusions targeting African industrial sectors. By Michael Hill Sep 21, 2023 5 mins Advanced Persistent Threats Cyberattacks Critical Infrastructure brandpost Proactive OT security requires visibility + prevention You cannot protect your operation by simply watching and waiting. It is essential to have a defense-in-depth approach. By Austen Byers Sep 21, 2023 4 mins Security Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe