Computer and Information Security Handbook, 3rd Edition

U

U/P, See Username and password (U/P)

UAs, See User agents (UAs)

UAV, See Unmanned aerial vehicle (UAV)

Ubiquity, 1119–1121

attacking with antivirus tools, 1122

Ubuntu OS, 70, 79, 205, 213f

UDDI, See Universal Description, Discovery, and Integration (UDDI)

UDID, See Unique Device Identifier (UDID)

UDP, See Uniform Datagram Protocol (UDP), User Datagram Protocol (UDP)

UID, See User identifier (UID)

UIs, See User interfaces (UIs)

Ultimately attribution, 1091

UML, See Unified Modeling Language (UML)

Unallocated clusters, 24, 25f, 583–584

Unallocated files, 610

Unauthorized

access, 828, 1012

entry, 603

network traffic patterns, 893

physical access, 969

probing, 603

web usage, 619

Unchecked user input, 492–493

Undervoltage, 969

Unicity distance, 40–41

Unicursive maze, 574 ...