According to CoinMeta, a recently disclosed zero-click vulnerability by Zoom could allow meeting participants to take control of other users' devices without the need for the victims to click on links or download files. The Israeli cybersecurity company A Security referred to this attack as “Zoomsday.” Researchers identified the vulnerability using less than 20 hints and publicly available AI models, and within 24 hours, they developed an effective exploit tool. These vulnerabilities affect the Zoom annotation system and may lead to remote code execution. Zoom assigned a high severity score of 8.3 to these vulnerabilities for CVE-2026-53413 and CVE-2026-53415, allowing one meeting participant to execute code on another participant's device. For encrypted users, this could expose information such as transaction sessions, wallet software, and private files. Zoom recommends that affected users upgrade to versions 7.1.5 or 7.0.6.