Based (@BasedOneX): Based Visa Card: Security Incident Update

Based Visa Card: Security Incident Update On 5 October 2026, we were alerted that an unauthorised party has gained access to an internal dashboard used to manage the Based Visa Card program. The attack was swiftly stopped and contained as soon as it was discovered. KYC data collected by our card issuer for some cardholders, including name, ID or passport number, date of birth and address, may have been obtained by the attacker. What was NOT affected: - Card numbers, CVV and PIN - Photographs of IDs and liveness check images - Based Wallet, which was used for trading - Funds on the Based Visa Card. Your funds are safe and Visa cards continue to work as normal. Affected cardholders have been notified by email today, and relevant authorities have been informed. What can you do next? If you are one of the affected users, assume that the data is compromised. Be careful of impersonation attempts from anyone who possesses that information. Sophisticated attackers may use this information to perform social engineering attacks. Also, support for Based Visa Card is only done on the in-app support chat, and no team members will DM you on Telegram or X for account servicing purposes. For security reasons, comments on this tweet is disabled on purpose. We are sorry about this incident, and we are working closely with our card service provider to tighten access controls and enhance monitoring.