WikiLeaks declined to publish a wide-ranging trove of documents at least 68 gigabytes of data that came from inside the Russian Interior Ministry, according to partial chat logs reviewed by Foreign Policy.
The logs, which were provided to FP, only included WikiLeakss side of the conversation.
As far as we recall these are already public, WikiLeaks wrote at the time.
In 2014, the BBC and other news outlets reported on the cache, which revealed details about Russian military and intelligence involvement in Ukraine. However, the information from that hack was less than half the data that later became available in 2016, when Assange turned it down.
We had several leaks sent to Wikileaks, including the Russian hack. It would have exposed Russian activities and shown WikiLeaks was not controlled by Russian security services, the source who provided the messages wrote to FP. Many Wikileaks staff and volunteers or their families suffered at the hands of Russian corruption and cruelty, we were sure Wikileaks would release it. Assange gave excuse after excuse.
The Russian cache was eventually quietly published online elsewhere, to almost no attention or scrutiny.
More details here