Pre-ordered Nioh and a nasty Steam exploit

So, I yesterday decided to pre-order on the PlayStation Store the Dark Souls-esque game Nioh, it is made by Team Ninja, most famous for their Ninja Gaiden games, and it is set in a fictional Dark Fantasy version of the late Sengoku period where you play as a Westerner by the name of William who comes to Japan in search of a mysterious foe.
Along the way, he is recruited by Hattori Hanzō, a servant of Tokugawa Ieyasu, to help in fighting the Yokais that have shown up around the land and are now rampaging ontop of the unruly ronin and bandits that are lurking in the countryside.
I had a chance at playing the game when its Last Trial was on the PlayStation Store, gave me a pretty good impression.
Here's a trailer that shows in game footage and some of the action you can expect:

The game is due for release tomorrow, I'm currently pre-loading it and so I should have it downloaded and installed real soon.
But on to a more serious matter.
I just saw a rather worrying piece of news on Steam that was shared via a group I'm a member of, apparently there's a very nasty exploit going about where your account can be exposed to phishing, malicious script execution and so on by either opening or even simply viewing profile pages of other Steam users.
The group had shared a link to a Reddit thread with a bit more info about this:
www.reddit.com/r/Steam/comment…
I highly urge that people be extra careful on Steam now.

Update:
Seems they actually have fixed the exploit, so that's a relief:
www.reddit.com/r/Steam/comment…