Originally Pursuit by Caitlyn Nicholas (me).
This book is being republished as Persecution by Tory Hayward (also me).
Legendary hacker, Dimity Pond, is on the run from the law.
Her landlord’s sold her home, her money has disappeared along with her two-timing husband, a cyber-terrorist named Nemesis is forcing her to wreak havoc with a nasty virus and she's developing a vile migraine.
Six years ago, Nemesis framed Dimity for the collapse of one of Europe's biggest banks. The money was never found, and the bank's failure caused untold damage to its customers. She's been living under the radar ever since. The only way she can clear her name and live a normal life is to uncover Nemesis's identity, but he's always one step ahead.
Since Lord Richard Summerhayes left the Special Forces he's built the best disaster-recovery network in the world, known as The Bunker. Banks, militaries, airports and other major systems around the world rely on him as the last unshakeable digital fortress in the face of disaster. Richard has been keeping an eye on his neighbor who has a dubious hacking past. He doesn't like hackers, and when someone nukes his network with an intriguing new virus he knows exactly who to blame. But when he confronts her, he gets a whole lot more than he bargained for.
When Nemesis commits an unthinkable act of terrorism, the last hope is an encrypted file that only Dimity can crack. Will Nemesis manipulate Dimity into helping him wipe out the world's biggest financial center? Or can Richard and Dimity take Nemesis down once and for all?