Experts are warning homeowners about the often-overlooked security risk posed by duplicate keys. The danger arises from keys made during property sales or by tradespeople performing repairs. Professionals in locksmithing and security systems emphasize the importance of securing access points effectively. They recommend measures to mitigate risks associated with unaccounted-for key copies. These measures include rekeying locks after property transactions or maintenance work. Prioritizing robust access control is crucial for long-term home security and preventing potential breaches. Ignoring this simple precaution can prove costly in the event of a security incident.