Password Lock

oldPull = os.pullEvent
os.pullEvent = os.pullEventRaw
while true do
term.clear()
term.setCursorPos(1,1)
print("Munch Corp Computer Security 2.0")
print("UserName: Munchin")
write("Password: ")
if read("*") == "Munch" then
print ("Access Granted.")
sleep(2)
term.clear()
term.setCursorPos(1,1)
print("Hi Munchin. How can i help?")
break
else
print("Incorrect Login Details.")
sleep(30)
end
end
os.pullEvent = oldPull