by In order to allow users to patch vulnerabilities as soon as possible, IT companies often issue information security notices so that users can deploy relevant updates or firmware as soon as possible. For an information security vulnerability with a severity rating of 9.6, they did not first announce it on their own website, but privately notified some users. After some users published the information, everyone knew about the vulnerability. Due to the improper management of external manufacturers, it is also worth noting that the user information is accidentally disclosed on the Internet. The car manufacturer Toyota recently disclosed the source code of the vehicle management system T-Connect, which led to the exposure of the account secrets that can access the user database. The reason is related to the website developer they cooperated with.
