US Patent 11801805 Security of user data stored in shared vehicles

User data stored in memory of a shared vehicle is managed in a secure manner. In some embodiments, user data stored in the vehicle is deleted in response to receiving a communication that initiates closing of usage of the vehicle (e.g., from a client device of a user that is operating the vehicle). A new user of a vehicle is prevented from being able to read or use private data of a prior user. In some embodiments, when authorizing usage of a vehicle by a new user, the vehicle is caused to delete the prior user data. After the prior user data has been deleted, a notification is received from the vehicle confirming that the vehicle has deleted the prior user data.