A traveller who pays for a fake room or follows a phishing message can lose much more than a holiday. On 21 October, the European Commission opened formal proceedings to examine whether Booking.com adequately assessed and reduced fraud risks, and whether paid listings were clearly marked as advertisements. The Commission has made allegations, not a finding of guilt. This forecast asks whether the investigation reaches a public preliminary finding by the end of June 2027.
What is known.
The Commission named three areas: fraudulent or non-compliant accommodation listings, phishing that exploits reservation and guest data, and paid-for boosted listings that might not be recognizable as ads. The proceedings are under the Digital Services Act, which gives the Commission investigatory and enforcement powers for large platforms.
Booking.com has an opportunity to respond and the Commission may seek more evidence. The mere opening of a case does not prejudge its outcome.
What earlier cases show.
Digital Services Act investigations can involve information requests, inspections and later preliminary findings before any final decision. The process is not a fixed timetable, so the June deadline is a forecast about pace and evidence rather than an automatic statutory step.
Why it is a possibility.
The Commission has moved from earlier information gathering to formal proceedings and defined concrete potential breaches. That raises the chance of a public next step. The opposing case is that Booking.com may demonstrate effective controls or the Commission may need many more months to examine how scams occur and who is responsible.
How the 58% was assessed.
Reference point. No comparable case set with a stable denominator and timing is available for this precise DSA investigation. Fifty-eight percent is editorial judgment with a 40–73% sensitivity band.
Why it could be higher. The Commission has opened formal proceedings and specified the issues it intends to investigate.
Why it could be lower. The facts and legal responsibility are contested, and there is no binding deadline for preliminary findings.
The editorial judgment. A public preliminary finding within eight months is slightly more likely than not, but a delay or narrower outcome remains substantial.
Limits of the estimate. The Commission's private evidence and Booking.com's response are unknown; the range is editorial sensitivity.
What could prevent it.
Booking.com may provide persuasive evidence of safeguards or offer changes that narrow the case. A complex investigation can last beyond June 2027 without preliminary findings.
How it will be assessed.
YES only if the European Commission publicly issues formal preliminary findings between 22 October 2026 and 30 June 2027 inclusive that Booking.com breached at least one Digital Services Act obligation concerning fraudulent accommodation listings, phishing using reservation or guest data, or labeling of paid boosted listings. A request for information, the already opened proceedings, a private statement, a voluntary remedy without preliminary findings, or a finding under another law does not count. Deadline 23:59 Brussels time 30 June 2027. If the deadline passes and Commission records remain available with no qualifying public preliminary finding, resolve NO; otherwise leave open.
Sources and primary records
Probabilities are provisional editorial estimates, not guarantees. Sources document the present evidence and resolution rule. Read the full disclaimer.