security protocol

noun
UK /sɪˈkjʊərəti ˈprəʊtəkɒl/
US /sɪˈkjʊrəti ˈproʊtəkɔːl/

A set of rules that keeps information safe and stops bad people from getting it.

The bank uses a security protocol to protect customers' money and private details.


OTHER MEANINGS

2. A formal set of steps followed to keep a place or event safe.

The airport follows a strict security protocol before letting anyone board the plane.

3. In computing, a set of rules that computers follow to send data safely.

The website uses a security protocol so your messages can't be read by strangers.

4. A government's official plan for protecting secrets and important information.

The new security protocol requires all staff to change their passwords every month.