can they be hacked, and the funds stolen, do they have a special wallet where they keep all the btc ? how do they work exactly?
can they suddenly decide to hold your btc, or restrict you or prevent you from sending or receiving bitcoin ? if you don't provide id or for whatever reason ?
do you own your btc (menmonic) with them or is it in their control?
thanks
yes it can be hacked, because every website must have a gap that can be broken by hackers so sites like blockchain can be done stealing data about people who buy there every day can do bitcoin or other cryptocurrency theft. In addition, people can also create websites that are similar to blockchain, but that is a SCAM website.