Over 34,000 vulnerable MongoDB databases were hit by a ransom attack. Data were erased from these databases and ransoms were requested for returning data. Then on Jan 18th 2017, several hundreds of ElasticSearch servers were hit by a ransom attack within a few hours.
Recently, some hacker organizations have turned their eyes to ransom attacks targeting certain products. As of last week, hacker organizations had taken control of and wiped data from at least 34,000 MongoDB databases, asking for a ransom to return the stolen files.