Cyrus Moore is the writing name of Cyrus Mewawalla, who was born in 1966 in Farnborough, England. He was educated at St Mary's International School, Tokyo and at Dulwich College, London. In 1988, he graduated from Cambridge University with a degree in Economics.

In 2002, after 14 years in the City, he left corporate banking to start a small research house with the objective of providing truly independent investment research, untainted by the conflicts of interest that have so badly tarnished the reputations of rival research analysts within larger investment banks. In 2006, Bloomberg ranked him the number one telecom analyst in the UK.

His first novel, City of Thieves, is the bestselling City thriller set in London in the days leading up to the credit crunch. The novel tells the story of one man's fight to protect his honour in a world where honour holds no value.

Cyrus lives in London with his wife and two children.