A passer-by in Glasgow has accidentally opened a Pandora’s box – or in this case a bin bag – for British bookmaker Ladbrokes Coral.

The Guardian reported that the UK Gambling Commission is investigating Ladbrokes for a possible violation of data protection laws after a passer-by found a bin bag containing sensitive documents of problem gamblers right outside a Ladbrokes shop in Glasgow.

According to the report, the documents that the passer-by found include personal details of customers who signed up for the betting industry’s multi-operator self-exclusion scheme, which allows problem gamblers to ban themselves from placing bets voluntarily.

Most bookmakers use a self-exclusion scheme called Moses, which is managed by a responsible-gambling body called the Senet Group, founded by four major bookmakers in 2014. The Moses website assures everyone that their “personal details are kept confidential and only shared with the participating bookmakers, their group companies and the central team administrators.”