I accidentally logged hundreds of thousands of phone calls to military bases
Summary
The article details how an expired nameserver allowed hijacking of e164.arpa zones, enabling the author to observe and potentially intercept ENUM lookups for Saint Helena, Diego Garcia, and Ascension Island. It highlights the security risk in DNS infrastructure, the challenges of ITU governance, and the potential for attackers to harvest phone-number metadata from hundreds of thousands of queries, before closing with responsible disclosure and transfer of control to the UK's NCSC.