Trying to explain more:

A vulnerability in the system that handles the transactions: so the sales offers (ICO) of the Ether cryptocurrency could have been falsified or otherwise influenced by malicious subjects. The news was made public by Parity Technology, the company that manages Multi Sig - Wallet, one of the technologies used within the Ethereum platform.

Not to mention that a user, most likely by mistake, has deleted a part of the system's code. Because of the vulnerability, Devops 199 became the sole owner of all the multi - wallet - managed portfolios and in an attempt to repay the money, blocked hundreds of millions of dollars in Ether. Thus, the companies and investors found themselves unable to manage the money they owned. One example is that of the Polkadot start-up: the company's top management has confirmed to Techcrunch that their portfolio has been suspended.

This is the second flaw that affects Parity's information systems. The first was made public last July and put at risk 150 thousand Ether (about 30 million dollars). And it is precisely the first bug to have convinced investors to use other technologies, so the future risks of the last flaw could be minimized by this circumstance. At the same time, however, the news of the error by Devops 199, has alarmed the whole system, with the result of lowering the value of an Ether from 305 to $ 291: the lowest result for two weeks. A reaction also justified by the fact that it would not be the first time that hackers violate the platform. In June 2016, the blockchain on which the transactions are based was punctured, with the removal of 50 million dollars from the Ether fund.