Black Shadow hacking group threatens to release data after targeting numerous websites through hack of internet hosting company in Israel

Attack by Black Shadow hacking group, which hit Shirbit insurance firm last year, takes a number of Israeli sites offline including public transport companies, museum

Harel's parent company says in Tel Aviv Stock Exchange filing that subsidiary will take over Shirbit customers at deal completion; Shirbit was subject to massive hack last year

Black Shadow hacking group threatens to sell additional documents stolen from Shirbit, publishes image of CEO's passport

After ransom deadline passes, account for group identifying as Black Shadow reportedly receives bitcoin payment of $104,000

Israeli insurance firm Shirbit is under attack as of this writing, with hackers demanding millions of dollars worth of Bitcoin as they release and dump private customer data

Cybercriminals publish sensitive data as second deadline passes; hackers deny company's insinuation of anti-Israel rather than financial motive for attack

Cybercriminals release sensitive data as Shirbit laments 'terrorism,' claims attack is meant to cause strategic harm with no financial motive; talks appear to show otherwise

Group warns sum will double every 24 hours, and say they'll sell the documents if ransom money not paid within 3 days

BlackShadow group claims responsibility for 'massive' attack on Shirbit, which held information on many civil servants; National Cyber Bureau confirms breach and is investigating