Germany’s armed forces are dealing with a serious IT failure. According to Handelsblatt, a severe fault at BWI — the state-owned IT company that runs the Bundeswehr’s systems — has cut off virtually all reservists from the military’s IT systems, email and messengers. The outage had already lasted more than a week as of Wednesday’s report, and the framing is stark: in the event of a defence emergency, it would have serious consequences — described in one account as “a catastrophe.”
Reservists are the Bundeswehr’s wartime backbone: the personnel who would be called up to fill out units in a crisis, and whose ability to be reached, alerted and briefed depends on exactly the kind of digital infrastructure that is currently dark. A week-long loss of access to mail and messengers is, in that light, less an inconvenience than a mobilisation-readiness problem.
BWI GmbH is the Bundeswehr’s wholly owned IT service provider and a central node in Germany’s efforts to modernise military IT — the same organisation that plans additional industry orders worth around €10 billion between 2027 and 2031, and that has been publicly discussing how to prepare the Bundeswehr’s IT for a war scenario. The episode lands as a reminder of how much of military readiness now rests on a handful of networked services, and of how brittle that dependency can be.
Neither the Bundeswehr nor BWI had publicly detailed the cause of the fault or a restoration timeline at the time of the reports. What is clear is the shape of the failure: not a breach announced with fanfare, but a quiet, week-long loss of contact with the reserve force — the kind of outage that stays invisible until it is needed.
