English / phrasal verb
Lock down security
MEANING IN ENGLISH
to heavily reinforce, tighten, or strictly restrict access to digital systems and devices to prevent intrusion
In context
01
The IT department moved quickly to lock down security across all office computers.
02
After the suspicious alert, the bank had to lock down security on its mobile app.
Synonyms
Tighten security,fortify defenses,reinforce protection
Antonyms
Loosen security,compromise safety,leave vulnerable
Collocations
Lock down network security,lock down security settings,act to lock down security