One of the trio, Park Jin Hyok, had been charged with hacking Sony Pictures in 2014 during which embarrassing emails sent by the company executives were made public
Ethical hacker Elliot Alderson, who exposed flaws in Aadhaar as well as the Aarogya Setu app, said the Koo app is leaking personal data and has a China connection.
A report sent to UN Security Council members said that North Korean hackers continued to attack financial institutions and cryptocurrency exchanges over last year.
On Friday, many Facebook users from the US and Europe reported that they were automatically logged out in the middle of sessions and failed to access their accounts.
Aviles accessed the accounts of over 200 customers on more than 9,600 occasions secretly over a period of four and a half years while he was based in Dallas.
Cybersecurity report revealed that China-backed hackers are stealing passenger details from airline companies to track the movement of persons of interest.
As Donald Trump remained mum on the alleged Russian-backed cyberattacks that compromised national security, Republican and Democrat senators have called retaliation.