Around half of the airlines flying from Heathrow were back online in some form by Sunday, and British Airways has been using a back‑up system since Saturday.
before 2025-09-21
Standing
lens: Evidence-weighted Structural
No belief has been computed for this claim under Structural yet.
What bears on it
Nothing supports or challenges this claim yet — untested, which is not the same as refuted.
Voices
No asserter is recorded for this claim.
Sources
No source is recorded on this claim directly. It entered the record through Heathrow cyber-attack: Airports warn of second day of disruption .
Origin: extracted from Heathrow cyber-attack: Airports warn of second day of disruption · 2026-09-08 22:42