I do not think that's true, there is not enough evidence! Just issue it to ask Binance. The exchange is now strong in Binance. so many crazy people accused Binance!!
You are one of them. This thread was created on march and it's meant this thread has been around 4 months and binance also stated if they didn't get hacked. All funds are safe.
I think that these people wasn't researching for legit informations, they've been outdated with binance latest updates. Currently binance had made their site much more safer than before as that news after 4 months, caused lots of trouble to those investors and holders to panic or might pulled their funds. As said and confirmed the funds were in good hands safe in the exchange site.