securityupdate
nounUK /sɪˈkjʊərəti ˈʌpdeɪt/
US /sɪˈkjʊrəti ˈʌpdeɪt/
A security update is a small fix that keeps a computer or phone safe from bad things.
My tablet asked me to install a security update before I could play games.
OTHER MEANINGS
2. A message telling people about a change that keeps something safe.
The school sent a security update about the new door locks.
3. A new version of a program that closes a hole someone could use to break in.
The app's security update stopped hackers from getting in.
4. The act of making something safer by adding new protection.
The bank announced a security update for its mobile app.