In the case of suspending these accounts, this isn't something just Slack has done. A crypto exchange was wholesale closing accounts in the past 3 years if peop

In the case of suspending these accounts, this isn't something just Slack has done. A crypto exchange was wholesale closing accounts in the past 3 years if people even opened the app while on holiday in Cuba and rightly so. You do NOT want to have to deal with the government if they suspect you, or a customer, of dealing with a sanctioned or embargoed country. You just don't. It's going to be messy and long and expensive especially as a finance or communication company. It isn't a "oh you're a Muslim/Iranian/Cuban/resident of Kiev, banned!" thing it's a "Oh, you could cost us millions and millions of dollars in legal trouble, exposure of our other customer's data, etc, sorry but we have to sever ties with you immediately to reduce our risk to very serious government investigation and litigation". Given Slack also uses encryption at rest and in transit, there may be a LEGAL REQUIREMENT not to allow users with ties to Iran to use the product under CFR title 15 chapter VII, subchapter C. > Shi'ite Iran certainly has human rights issues, but as far as terrorism is concerned the majority of them are orchestrated by Sunni groups It doesn't matter what religious sect has perpetrated acts, the current government is reliably documented to a laundry list of terrorist attacks, cyber attacks, imprisoning/lashing/executing members of the gay community, at least 15 assassinations on foreign soil (US, FR, DE, CH, SE etc), a recent president was a staunch holocaust denier and the government even sponsored an anti-holocaust conference. We impose sanctions, embargoes etc on COUNTRIES not religious sects. We hold COUNTRIES responsible for war crimes and genocides, not specific religious sects. The current government of Iran in this instance has a history of doing bad things for its entire existence, as such the U.S. government has decided they are both a threat to nation and worthy of sanctions for various reasons. I suspect the powers that be at Slack simply are trying to minimize risk to the company and other customers by eliminating users that have shown a connection to IPs geographically connected to the nation of Iran. See: - 15 CFR chapter VII, subchapter C. - 31 CFR Part 560 and Appendix A to Chapter V - Public Law 115–44 (the CAATSA)