That's not so much true as a thing that "mens rights" advocates seem to enjoy saying. In fact: the available evidence points sharply in the other direction.
Case in point, duke lacrosse players and Derrick Rose.
Heck, Derrick Rose's accuser didn't even have her name made public whereas Derrick Rose had his name dragged through the mud and had to spend plenty of time and money on lawyers. Whatever happened to the legal system being public record?
That's the best case scenario. The woman was trying to settle, but ended up trying to sue for 21 million. Again, that is the best case scenario, that you have enough time and resources to lawyer up.
If somebody accuses you of something like that when you're at work, there is no due process when it comes to HR. You can sue for wrongful termination, but that's hard to prove and requires expensive lawyers.