Hands Up!!!

In the past couple of days there have been several reports of digital currency wallets and exchanges that garnered the attention of individuals/collectives(?) who were able to abscond with relatively large sums of "money". As a laymen and below novice in the digital currency world, I envision these activities as modern day bank robberies, with keyboards brandished as effective as Rambo wielding a .50cal, to complete their mission with the precision of Seal Team Six.

http://www.cnbc.com/2017/06/14/major-bitcoin-exchanges-hit-by-cyberattacks-as-record-rally-makes-them-a-target.html
http://fortune.com/2017/07/18/ethereum-coindash-ico-hack/
https://www.cryptocoinsnews.com/hackers-seize-32-million-in-parity-wallet-breach/

I understand that the technology used to generate these new forms of currency are state-of-the-art. That safeguards are in place to prevent the unthinkable from happening. Privacy is of the utmost concern. A slew of other reasons and activities which make cryptocurrency the forerunner in making it a global token that is embraced by all and all signs point that it will not suffer the same fate of the Euro and it's acceptance by all.

Please bear with me as I try to process this...Cryptocurrency is anonymous...Transactions are logged on a blockchain...Once a transaction is completed, there is no way to trace the money or person if and when a currency tumbler is used to "clean the money"?

I know that companies and White Hats are feverishly working around the clock to ensure that our futures are secure. I also know that this is a teeter totter game of see who controls intellectual supremacy and one-upmanship, exploiting and exposing vulnerabilities vs securing those holes in the wall.

So, did they guys get away with it!?! Are they enjoying the spoils of their last adventure? Please help me understand this trend.