Not only are governments improving their capabilities, but many private-sector companies are entering the game, and their participation reduces the costs to governments of having to disclose sensitive sources. Many situations are matters of degree, and as technology improves the forensics of attribution, the strength of deterrence may increase.
及时、高质量的来源追踪往往既困难又昂贵，但却不是不可能的。不仅政府在提高这方面的能力，很多私营企业也介入其中，而它们的介入降低了政府被迫公开敏感来源的代价。很多情况都只是程度问题，随着技术的发展提高跟踪取证能力，威慑的强度也可能会增加。