Tor isn't sending ARCs for WOT books, Harriet forbade it and Doherty enforces this (the publicists have tried to convince him to relent, it didn't work). They didn't do it for TGS and TOM, they don't do it for AMOL either. Most reviewers who get any review copies all got final copies, are for the most part pros from the big media, and still got their copy only a few days before release. Most copies to bloggers etc. were actually sent on the eve of release (Larry, I think, is one of the few who got a copy a few days in advance. Linda and me - I was still involved with the 13th Depository site a the time - got our copies 24 hours before release as our site was only a few months old at the time... Mine anyway, Linda is from Australia and got her copy quite later as the Tor agent was forbidden to use air mail).

Jason and co. (a very select club of WOT webmasters from the old days Harriet has met personally and trust... Theoryland's, EWOT's, DM's and TV.net's) have not received ARCs, they've acted as beta-readers for Team Jordan, for all three books. For TOM (perhaps for TGS too, I don't know) Harriet was so paranoid she asked Brandon to print and photocopy these "beta copies" in person as she feared she was too well-known in Charleston to do this herself. No ebook/eletronic copies were made, and the hard copy ones were retrieved after the beta-reading.

There's very little chance of any leak, not from the beta-reader or non existing ARCs anyway. That leaves blunders at Tor or the printers, but we were told security was pretty tight... even at Tor staff including the publicists involved with it were not allowed to read the book until fairly late in the game. Tor even decided the final line edits would take place out of the place (unlike in RJ's days) - they've hired RJ's assistant Maria to do that job from Charleston. Harriet's slightly (!) paranoid about spoilers and didn't take any chance.