Is Bitcoins and Cryptos under attack??

I have been seeing this in the news and if you have also been following the trends on the Cryptocoin thing, you may have just noted that recently it has been aired that Cryptocurrency have had issues. It is reported that a Yahoo malware has put people's across Europe has put people into slaves. I have been watching the trends, thinking about "investing" with the digital currencies. I know its a gamble but i still wanted to see what may come. But soon as I have been seeing a drop for almost 5 days in a row, I dont think I want to be part of this anymore.

Here are some links that state Cybercriminals have been using a malware for the past week
http://www.theguardian.com/technolo...urned-europeans-computers-into-bitcoin-slaves

http://about-threats.trendmicro.com/us/webattack/93/Cybercriminals+Unleash+BitcoinMining+Malware

Bitstamp is also said to have restored its services which had seen it face a transaction malleability:
http://www.theverge.com/2014/2/15/5414610/bitstamp-restores-service-after-targeted-attack

So now is this a losing battle, do you think the digital currencies are under attack? Is it worth investing anymore or maybe a recovery...