electronic trail
noun[C,usually singular]
ukusINTERNET
aseriesofactionsoreventson theinternetthat you canfollowtofindout who isresponsiblefor them:
Policeinvestigatedanelectronictrailthatledthem to aninternationalpeople-traffickinggang.
Youleaveanelectronictraileverytimeyou use anATMorpayfor something on theinternet.