Stalker Elliot Fogel was found guilty at Harrow Crown Court on Monday of breaching a lifetime restraining order preventing him from harassing a woman he met 24 years ago as a student.
Fogel, 40, of Edgware, north London, was also found guilty of saving and storing information about Claire Waxman, 38, a complementary therapist who has become known as a campaigner for victims’ rights.
The jury had heard how Fogel, a former television producer, pursued a "dishonest and devious" High Court claim against Ms Waxman as a means of continuing a campaign of harassment against her.
He became subject to a restraining order in 2005 after he was convicted of making nuisance phone calls to Ms Waxman.