Along with the riddle, the Shin Bet also released a recruitment video and new website about the organization's activities, which recorded hundreds of thousands of views and hits.
The campaign has thus far bore fruit, evidenced by 480 applications being submitted within 20 hours of the start of the campaign.
Additionally, the Shin Bet has unveiled new career paths complete with high salaries and other benefits meant to recruit and retain quality personnel.
The release of the riddle comes a year after Mossad tried a similar stunt on the eve of Independence Day. More than 25,000 participants attempted the riddle with most failing. However, a few dozen promising candidates managed to pass and were recruited.
However, there was a much greater responseo the Shin Bet's riddle than that of the Mossad. This has been attributed to the fact that a Shin Bet team implemented lessons from Mossad's previous attempt and developed a much more complicated puzzle, comprising many different layers.
The exercise even managed to generate buzz in many mathematical forums across the world.
Candidates who solve the riddle will be invited to apply for one of the Shin Bet's specialized technology units.