Editing Universal integrated circuit card (section)

{{short description|Smart card used to uniquely identify a mobile device on a cellular network}}
{{see also |SIM card |eUICC |eSIM}}
{{more citations needed|date=December 2009}}
[[file:Sim card.png|thumb|A [[smart card]] taken from a [[Global System for Mobile Communications|GSM]] mobile phone]]
[[file:SIM-DXAI20210313172217.jpg|thumb|alt=Black and white image of the contacts area of a SIM card showing the internal construction|X-Ray of a SIM card showing small rectangular semiconductor chip (central small rectangle) and five bond wires leading to the connection pads. This can also be seen by peeling off the UICC from an old credit or debit card, as those are single-sided.]]
[[file:Vodafone New Zealand SIM circa 2002.jpeg|thumb|A 25 × 15 mm [[Vodafone New Zealand]] SIM card]]

The '''universal integrated circuit card''' ('''UICC''') is the physical [[smart card]] ([[integrated circuit]] card) used in [[mobile terminal]]s in 2G ([[Global System for Mobile Communications|GSM]]), 3G ([[Universal Mobile Telecommunications System|UMTS]]), 4G ([[LTE (telecommunication)|LTE]]), and [[5G]] networks. The UICC ensures the integrity and security of all kinds of personal data, and it typically holds a few hundred kilobytes.<ref name=szasif2011>{{cite book|last=Asif|first=Saad Z.|title=Next Generation Mobile Communications Ecosystem|year=2011|publisher=John Wiley & Sons|isbn=978-1119995814|pages=306}}</ref>

The official definition for UICC is found in [[ETSI]] TR 102 216, where it is defined as a "[[smart card]] that conforms to the specifications written and maintained by the ETSI Smart Card Platform project". In addition, the definition has a note that states that "UICC is neither an abbreviation nor an acronym".<ref name="Smart cards; Vocabulary for Smart Card Platform specifications">{{cite web|title=ETSI TR 102 216|url=http://www.etsi.org/deliver/etsi_tr/102200_102299/102216/03.00.00_60/tr_102216v030000p.pdf|access-date=25 June 2014}}</ref>

NIST SP 800-101 Rev. 1 and NIST Computer Security Resource Center Glossary state that, "A UICC may be referred to as a SIM, USIM, RUIM or CSIM, and is used interchangeably with those terms",<ref>{{cite journal
 |url=https://doi.org/10.6028/NIST.SP.800-101r1
 |title=NIST SP 800-101 Rev. 1
 |website=nist.gov
 |year=2014
 |publisher=National Information Technology Laboratory
|doi=10.6028/NIST.SP.800-101r1
 |last1=Ayers
 |first1=Rick
 |last2=Brothers
 |first2=Sam
 |last3=Jansen
 |first3=Wayne
 }}</ref><ref>{{cite web
 |url=https://csrc.nist.gov/glossary/term/universal_integrated_circuit_card
 |title=Universal Integrated Circuit Card
 |website=NIST CRISC Glossary
 |publisher=NIST
 |access-date=14 Sep 2022
}}</ref> though this is an over-simplification. The primary component of a UICC is a [[SIM card]].{{Citation needed|date=September 2022}}