Thirdly, it is non-intrusion, that is to say, it is not required to modify the module because of monitoring requirements.
具有非侵入性， 即不会对构件进行任何修改， 不会影响到第三方应用的逻辑结构。
2
Normal activities of the user's non-statistical analysis and found that intrusion of the law.
对用户的非正常活动进行统计分析，发现入侵行为的规律。
3
In order to overcome the limitations lied at the classic self-non-self thinking, this paper proposes a novel Intrusion Detection System(IDS) based on double-signal inspired by danger theory.