The Gartner group estimates that the direct phishing-related loss to US banks
and credit card issuers in 2003 was $1.2 billion. Indirect losses are much higher,
including customer service expenses, account replacement costs, and higher
expenses due to decreased use of online services in the face of widespread fear
about the security of online financial transactions. Phishing also causes
substantial hardship for victimized consumers, due to the difficulty of repairing
credit damaged by fraudulent activity.
So, as long Microsft can prevent from any online thief with effectively, users will happy about it.