http://forums.xbox-scene.com/index.php?showtopic=723030C4E posted some updates about the Xbox360 fall2010 dashboard security on #FW@EFnet. He reports the Update Process itself seems 'safe' atm, however that doesn't mean you can go ahead updating and booting everything you want. AP2.5 games are a problem/unsafe for sure (and we don't know exactly which titles all have or will have AP2.5 active). For the rest nothing is 100% confirmed safe atm.
[c4eva] ap2.5 already defeated, backup fable 3 running fine on beta dash! more data required for analysis!
[**] C4 are you planning on releasing the new LT+ for the old consoles? ie. not slim?
[c4eva] **:yes
[***] c4eva, is it confirmed that current FW and older games will be safe in the new dash?
[c4eva] ***:unknown at present!
[c4eva] dash out?
[c4eva] version please?
[c4eva] so it begins,dash version please?
[****] c4 2.0.12611.0
[c4eva] very good, thx, same version im already working with!
[*****] C4 are you still working on hitas? Will they eventually be released =)?
[c4eva] *****:was working on it , not for a while now!
[*******] c4eva so there will be a LT+ for lite-on and benq drives
[c4eva] yes
[c4eva] ok, have logged the update process, analysing!
[c4eva] logged entire update process, no vendor packets, only standard inquiry and key exchange, so update process safe!
[c4eva] fable 3 not safe! ap2.5 active for that title with new dash!
[c4eva] as soon as we have enough data on ap25 then there will be something
[c4eva] testing more game titles soon for ap25!