Yes, Bet365 is safe to use. The sportsbook provides various levels of firewall and other protections and the sportsbook itself is regulated by each of the state gaming regulations Bet365 is legal in.
At bet365 the security of your information is paramount, and we employ multiple systems to protect your information. Our website uses TLS (Transport Layer Security) to encrypt data going to and from the site, including personal details and any debit card information provided to us.