| 摘要 |
Security provisions are described which determine whether or not executable content is likely to perform undesirable actions. The security provisions assess that an executable content item poses an acceptable risk when it conforms to an allow list of predetermined patterns of permissible behavior. The security provisions find exemplary use in the context of an instant messaging environment, where participants can consume and propagate executable content in the course of conducting a communication session. Supplemental rules are described which prevent malicious code from subverting the allow list design paradigm.
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