Here are some key points regarding the CoWIN data leak:

• On June 10, 2021, a website allegedly leaked data of 150 million vaccinated people in India.
• The website provided personal information such as names, genders, and addresses of people who received the vaccine.
• The data leak was taken seriously by authorities, and a case was registered under the Information Technology (IT) Act.
• The police tracked down the alleged perpetrator, a 22-year-old computer science student from Rajasthan, and arrested him.
• The accused claimed that he had created the website to alert the government about the loopholes in CoWIN's security system.
• The investigation is ongoing, and the police are trying to determine if the accused acted alone or had accomplices.
• The government assured citizens that their data is safe, and vaccination continues to be a priority in the fight against COVID-19.

Overall, the CoWIN data leak was a significant concern for the Indian government, but measures are now being put in place to ensure the safety and privacy of citizens' data.