Behind the scenes
- The card in which Gobb Lynn Security Specialists was mentioned was featured on the "Extra Stuff" section of J.K. Rowling's Official Site. It was removed from said section shortly after.
- This company's phone number was the combination needed to open the safe behind the secret door on Rowling's Official Site which revealed an excerpt from Harry Potter and the Half-Blood Prince.
- J.K. Rowling's Official Site (Mentioned only)
Notes and references
- ↑ Given that their advert included a telephone number it is very unlikely this was a wizarding company.