Question: Computer Security question! The Bank website uses authentication cookies in which the username and times-tamp are encrypted with RC4(K), where K is the fixed key

Computer Security question!

The Bank website uses authentication cookies in which the username and times-tamp are encrypted with RC4(K), where K is the fixed key known only to the website itself. If you are a customer of the bank, explain how you can log in under the username of any other customer.

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