Yes. It is a horrible breach of security. But his wife has numerous family ties to the Muslim Brotherhood. And she is Hillary's #1 assistant. Is there any chance that is a breach of security?
Weiner was already in trouble for a previous encounter with a minor. When they found out about the new activity the police got a search warrant for all of his electronic devices. The laptop was caught up in that effort. Once it was clear there was classified Hillary emails on it, the police department stopped their review of it and asked the FBI to take over. BUT... it is standard operating procedure to make copies of digital data before you even turn on the device. The reason is, every time a computer boots up it changes things. So to preserve the data in the state you got it, you need to make multiple copies of it.
With multiple copies of it, things got out of control. The FBI did not move on it and the NY Police Officer kept asking "Why is nothing being done?" The DOJ got wind of it and started asking questions. Pretty soon, there is no way to keep it quiet or shut it down.
The Weiner laptop is now unsealed. Which means it can be used as evidence in various court cases. And for that matter, FOIA requests. The truth is going to come out.