i know it's not vistana but they are linked. bonvoy security wasn't good enough to prevent hackers. they got my account information, requested to change my email address, then requested to change my cell phone number, then changed my password, and from there, they used up all my points making hotel reservations. all they had to do was add their name on as my guest. the first couple had a nice 200k stay at the westin, but then i happen to check my account through the app on my phone which kept me logged in, and i saw that i had two hotel check ins scheduled for today. i sent a chat immediately and called bonvoy. they were able to see that the changes happened dec 24. two couples had already checked in. i got their phone number and email. then we were able to change everything back to my name. then they locked the couples out of their rooms and called the police. somehow one couple was able to get housekeeping to let them in, they grabbed their stuff and left. the other couple in seattle was confronted. needless to say it is quite concerning that bonvoy did not have some security in place to notify the email on file for the last 20 years, that a request had been made to change. the messed up. all my points will be reinstated, but they still messed up. I also had my amex card as a guarantee so amex stepped in too. need to check vistana to make sure they didn't screw that account up but a week long stay is probably not something they want to try and hack. Happy New Year everyone. travel will resume someday