NEW YORK (Standard&Poor's) Oct. 23, 2008--Standard&Poor's Ratings Services said today that it revised its outlook on Allstate Corp. (Allstate), Allstate Insurance Co. (AIC) and its property/casualty affiliates (collectively, Allstate Protection), and Allstate Life Insurance Co. and its life insurance affiliates (collectively Allstate Financial) to negative from stable. Standard&Poor's also said that it affirmed its 'A+' counterparty credit rating on Allstate and its 'AA' counterparty credit and financial strength ratings on Allstate Protection and Allstate Financial. "The negative outlook reflects the significant deterioration in capital adequacy to the strong level from very strong," explained Standard&Poor's credit analyst Neil Stein. "This resulted from a combination of sizable catastrophe losses and realized investment losses, investment