The center-left Blue and White party, which hopes to become the largest faction in Thursday's election and unseat Prime Minister Benjamin Netanyahu, revealed Thursday that it was under a massive cyberattack.
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"Our headquarters is now facing a major cyberattack, with more than 500 attempts to infiltrate our systems from various overseas servers," Blue and White co-leader MK Yair Lapid tweeted Thursday afternoon. "This will cost us tens of thousands of shekels," he continued.
It was unclear who was behind the alleged attack, although throughout the campaign the party has struggled to safeguard its communications.
According to one report, the party's electronic devices, including leader Benny Gantz's personal phone, were compromised by Russian hackers several weeks ago.