During the Last Great Time War, the Time Lords employed technical teams.
Technical teams were dispatched to look for ways to block the temporal signature of all operational TT capsules in order to prevent the Daleks from tracking them. The Dalek Combat Training Manual published during the war acknowledged that the technical teams had never been able to access the Dalek Pathweb. However, by foreseeing the post-war Asylum Incident through the Matrix, the Time Lords realised that it was possible to hack the Pathweb and so devoted additional resources to this means of attack. (PROSE: Dalek Combat Training Manuak)