Remotely Exploitable Bug in Truecaller Puts Over 100 Million Users at Risk
Mar 29, 2016
Security researchers have discovered a remotely exploitable vulnerability in Called ID app " Truecaller " that could expose personal details of Millions of its users. Truecaller is a popular service that claims to "search and identify any phone number," as well as helps users block incoming calls or SMSes from phone numbers categorized as spammers and telemarketers. The service has mobile apps for Android, iOS, Windows, Symbian devices and BlackBerry phones. The vulnerability, discovered by Cheetah Mobile Security Research Lab , affects Truecaller Android version of the app that has been downloaded more than 100 Million times. The actual problem resides in the way Truecaller identify users in its systems. While installation, Truecaller Android app asks users to enter their phone number, email address, and other personal details, which is verified by phone call or SMS message. After this, whenever users open the app, no login screen is ever