A security vulnerability in Verizon's Call Filter app allowed unauthorized access to incoming call logs of other users through an unsecured API request. Discovered by researcher Evan Connelly, the flaw was addressed by Verizon in March 2025, but the exposure duration remains unknown, raising concerns about the handling of sensitive user data.

The article appears to be corrupted or improperly formatted, making it impossible to extract coherent information or insights regarding Verizon's data breach investigations report for 2025. Consequently, no relevant summary can be provided based on the content available.