Reddit faces data breach threat, alternative platforms emerge.

Hackers known as BlackCat are threatening to release 80GB of confidential data stolen from Reddit during a February breach unless the company pays a $4.5 million ransom and reverses its controversial API pricing changes. Reddit confirmed the cyber incident in February, but said it had "no evidence" that personal user data had been stolen. BlackCat has also been linked to a March attack on Western Digital and a threat to leak data allegedly stolen from Amazon-owned video surveillance company Ring. Reddit has not yet responded to BlackCat's demands.