ERIC O'NEILL is a cybersecurity expert and former FBI counterterrorism and counterintelligence operative. He is the founder of the Georgetown Group, the premier investigative and security services firm; serves as national security strategist for Carbon Black; and is the General Counsel for Global Communities, an international charity. He lectures internationally about espionage and national security, cybersecurity, hacking and fraud, and corporate diligence and defense, and has appeared as a national security expert on CNN and Fox. His writing has appeared in the Boston Globe, The Hill, TechCrunch, and Mashable. O'Neill is a graduate of Auburn University and the George Washington University School of Law.
“Reads like a John le Carré spy novel . . . Gray Day is a book that
keeps readers on the edge of their seat, and contains an important
message about data security.” —Galveston County Daily News
“Gray Day is a well-written and suspenseful story about an odd
spy and the young man who helped take him down.” —The Washington
Times
“If Robert Ludlum spitballed an espionage story with a Russian
hacker, they might have conjured up with something as wild and
riveting as Gray Day. Except that this yarn, incredibly, is
true. An enthralling spy tale that feels ever more relevant with
each passing day.”—Dave Howard, author of Chasing Phil: The
Adventures of Two Undercover Agents with the World's Most Charming
Con Man
“What job could possibly be twisty, mind-bending, and demanding
than being an undercover spy in one of the FBI’s own cybersecurity
units? With resolute doggedness, shrewd psychological instincts,
and the sheer guts to make critical split-second decisions, rookie
agent Eric O’Neill helped to turn the tables on his own boss—one of
the most dangerous traitors of our time. In Gray Day he weaves
together his personal and professional stories with all the skills
of a seasoned novelist. The result is a thrilling, page-turning
brew worthy of Hollywood—only better because it’s real.”—Elisabeth
Elo, author of Finding Katarina M.
“Gray Day is a fascinating read about catching infamous spymaster
Robert Hanssen, who turned over classified materials to the
Russians. You can’t help but root for Eric as he tells his story of
spying on the spymaster. I recommend this gripping book to all
audiences, especially computer geeks and those interested in
cybersecurity.”—Kevin Mitnick, New York Times bestselling author of
Ghost in the Wires and The Art of Invisiblity
“An adrenaline-laced memoir . . . as compulsively readable as any
thriller. O’Neill has a knack for ratcheting up tension so that
foregone historical conclusions, such as Hanssen’s capture, feel
like white-knuckle cliffhangers. . . . O’Neill’s page-turner
deglamorizes undercover work while conveying the uncertainty,
stress, and excitement that accompany a successful
investigation.”—Publishers Weekly
“A taut and compelling real life thriller . . . part memoir, part
true crime, this fast-paced work is recommended for anyone
interested in cybersecurity, Cold War history, and espionage
tales.”—Library Journal
“O’Neill’s narrative . . . is valuable in its exploration of the
psychology of the traitor and his motivations as well as how spies
like Hanssen so often enjoy success for as long as they do until
finally caught: ‘Amateurs may hack machines, but professionals hack
people.’ Fans of spy fiction and true crime will find plenty to
enjoy in O’Neill’s account.”—Kirkus Reviews
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