Back to Glossary

Glossary Term

Expired Domain Reuse

Attackers re-register lapsed domains to weaponize residual trust and reputation.

1 min read

Share this definition

Post it to your feed or send it to teammates.

Expired Domain Reuse

1-minute read

What it is

Expired Domain Reuse happens when abandoned domains are re-registered by attackers after expiration, often retaining brand trust or historical reputation.

Why it matters

Attackers can leverage these domains for phishing, malware delivery, or impersonation of legitimate organizations, making malicious campaigns appear authentic.

How to reduce risk

  • Track owned domains continuously, including parked or defensive registrations
  • Renew or properly decommission unused domains before they lapse
  • Monitor DNS and WHOIS changes for suspicious transfers

Related Terms: Typosquatting, Domain Spoofing, Subdomain Takeover

External Resources:

  • CISA Guidance – Domain Security: https://www.cisa.gov