Spy Olympics: America is #4 and China the top dog.

Strategy Page rates them:
#4  US
#3  Russia
#2  Israel
#1  China

Read the rest here.
US is ahead in data collection but not cyber attacks and penetration of other security agencies?

"Experts point to China as the undisputed leader in global cyber warfare. China is believed to have hacked the Australian intelligence apparatus, Indian government networks and departments within the Canadian government. The U.S. suspects China of both sabotage and espionage of American defense networks, private corporations, industrial organizations, research facilities and industrial assets"

US #4

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