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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def is_file_secure(file_name):
 	"""Returns false if file is considered insecure, true if secure. 	If file doesn't exist, it's considered secure! 	"""

	if not os.path.isfile(file_name):
		return True
	file_mode = os.stat(file_name).st_mode
	if file_mode & (stat.S_IRGRP | stat.S_IWGRP | stat.S_IXGRP | stat.S_IROTH | stat.S_IWOTH | stat.S_IXOTH):
		return False
	return True