Apparently international domains (IDN) can be used to fool initial visual inspection:
Demonstration: (this site is nothing to do with me)
http://www.shmoo.com/idn/
Look very carefully at the first "a" in paypal in that demonstration.
In theory this can be blocked at least in Firefox by turning off international domain support (IDN) as a temporary workaround:
Quote:
Type about:config in your address bar
Then search for network.enableIDN
Click on it to set it to FALSE
IDN support should then be disabled
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