Daemon Tools, a widely used app for mounting disk images, has been backdoored in a monthlong compromise that has pushed malicious updates from the servers of its developer, researchers said Tuesday. Kaspersky, the security firm reporting the supply chain attack, said it began on April 8 and remained active as of the time its post went live. Installers that are signed by the developers official digital certificate and downloaded from its website infect Daemon Tools executables, causing the...