The 'time-travel' flaw that prompted India to block Telegram ahead of NEET-UG retest

India's National Testing Agency (NTA) has blocked Telegram due to a feature that scammers are allegedly using to fabricate evidence of exam paper leaks, just before the NEET-UG retest. The "time-travel" flaw allows users to edit messages, which scammers could exploit to create false proof of leaked questions, potentially undermining the integrity of the exam. This move highlights the importance of maintaining the credibility of national exams, which are crucial for students' future opportunities. The blocking underscores the lengths authorities will go to ensure fair play in such high-stakes assessments.