protective measure; safeguard
A measure or policy designed to protect against a specific threat or danger. Often used in formal or technical contexts such as security, disaster prevention, or public health.
The government announced new protective measures against infectious diseases.
This system incorporates multiple safeguards.
防御策 is a near-synonym also meaning defensive measure, but 防護策 often implies a more comprehensive protective plan or policy.
Compound of 防護 (ぼうご, 'protection') and 策 (さく, 'plan' or 'measure').