A security researcher discovered that nearly a million passports and photo IDs were left unprotected on the public internet, due to a lack of security measures by an Irish company called Cannabis Club Systems. The documents were hosted by systems used by cannabis clubs and the company's platform, PuffPal, which manages membership and age verification for cannabis retailers and clubs across Europe. The company has since taken steps to secure the data and notified local authorities. The breach has raised concerns about data security and the potential consequences of such leaks.