Truecaller’s ‘Guardians’ app, launched on March 3, that allows users to share live location with guardians had a major vulnerability. The firm had fixed the issues within hours after it was pointed out by Bengaluru-based security researcher and founder of cybersecurity startup Pingsafe Anand Prakash. The ‘personal safety’ app also has an emergency button that notifies selected contacts with real-time location details at the tap of a button in case of a crisis.