unsecure
/ˌʌnsɪˈsɪr, -ˈsɪrə/Definitions
1. adjective
not secure; lacking adequate security measures or protection
“The company’s unsecure servers were vulnerable to cyber attacks.”
2. verb
to make something less secure or more vulnerable
“The hacker’s actions unsecured the entire network.”
3. noun
a state or condition of being insecure; a lack of security
“The unsecurity of the system led to a major data breach.”