Investigation Reveals German Foreign Intelligence Deputy Chief's Phone Number Remained Publicly Available Online for Years

An investigative report has revealed that the personal mobile phone number of the deputy head of Germany's foreign intelligence service (BND) remained available online for years, in a security breach described as serious.

According to the investigation, the breach was not limited to the senior German official's number — it also encompassed information related to other high-ranking security figures in several European countries, whose personal data was similarly accessible to the public.

How Did the Breach Occur?

The investigation did not fully clarify the precise mechanism by which this sensitive data leaked and remained accessible for an extended period without being detected or removed, raising questions about the effectiveness of data-protection measures for senior security officials.

The incident raises serious security concerns, given the sensitivity of the deputy head of German foreign intelligence's position and the potential risks stemming from the possibility of unauthorised parties gaining access to a direct line of communication with an official of that level.

German intelligence has not yet issued any publicly available official comment on the investigation's findings or the steps it may take to address the breach.

It also remains unclear whether the other European security agencies involved have taken steps to protect their officials' data in the wake of the disclosure of this vulnerability.