"Reasonable safeguards" refers to the practical and sensible measures taken to protect something or someone from harm or danger. It involves taking thoughtful actions to ensure safety and security without being excessive or extreme. Full definition
It is important, and in many states legally required, for brokers and agent to implement and maintain reasonable safeguards that protect the security, confidentiality, and integrity of personally identifiable information. (nar.realtor)
In its most basic form, duty of care means taking reasonable care not to cause damage or injury to another and taking reasonable safeguards to prevent such injury. (realtormag.realtor.org)
The remaining 16 were deemed to have reasonable safeguarding measures in place. (bbc.co.uk)