A cybersecurity breach involving TeleMessage, an Israeli messaging application company, has raised concerns about customer data safety. The breach allowed unauthorized access to direct messages and personal information on the platform, which lacks full end-to-end encryption like Signal. The hacker reported that accessing the data took only 15-20 minutes and exposed names, phone numbers, and email addresses of Customs and Border Protection officials, along with information from various financial institutions. TeleMessage is used by government agencies, including the State Department and the Centers for Disease Control and Prevention, making the breach more significant. While the hacker did not access all content, they indicated potential for further breaches, and journalists have verified some of the compromised material. TeleMessage's claim of maintaining Signal's security standards is questioned, as archiving messages introduces privacy risks. A spokesperson for Signal warned against using unofficial versions of their app, highlighting security vulnerabilities.