Wilf's first start-up, in 1997, was
Trivnet.com, a payments company, which was sold to
Gemalto in 2010.[5][3] His second start-up was
Fraud Sciences Ltd, which was acquired by
eBay through
PayPal in 2008 for $169 million, where he worked until 2010.[6][3][7][8]
Bzigo, that he co-founded in 2016, has developed a machine which scans a room for
mosquitos and tells
mobile phones where they are, describing itself as "an
Iron Dome for mosquitos".[4][14][9] In 2020, its machines were scheduled for delivery to customers in 2021.[9]
In 2017, Wilf founded
Rootclaim, which uses
probabilistic analysis to predict the likely solution to questions about controversial events such as war crimes, murder cases, and airline crashes. For example, it attributes the 2013
Ghouta chemical attack in
Syria to the Syrian opposition and the downing of
Malaysia Airlines Flight 17 to the Russia-aligned Donetsk People's Republic.[15][7]
In 2018, he founded payments system
Quahl (originally known as Initiative Q), backed by American economist
Lawrence H. White and branded a "
pyramid scheme with grandiose ideas" by the Financial Times.[16] However, Mashable disagreed explaining "The important bit is that there's no money changing hands here".[17][6][5] Seven million users had signed up within a year.[6]