"Group 54, a collection of professional hackers, is operating out of Oman. They work for people that provide the necessary information needed to destroy their personal enemies. Millions of euros are made on each ransomware attack.
The group takes a contract targeting the Russian President and one of his oil companies. Mistake number one. After that, they take a contract to go after the youngest son of King Salman of Saudi Arabia. Big mistake number two. The fallout from those cyber attacks is widespread and covers many countries and people, including Liam Strange.
Strange is brought into the fray when Group 54 starts going after entities in the U.K. An MI-6 asset is planted into Group 54 and the hunt is on."