simjacking

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noun

A social engineering technique in which a person poses as the owner of a mobile phone number and convinces the provider to transfer it to a new SIM (Subscriber Identity Module) owned by the fraudster.

Scrabble 26

Meanings

nounsimjacking (uncountable)

alternative SIM-jacking

  1. uncountableA social engineering technique in which a person poses as the owner of a mobile phone number and convinces the provider to transfer it to a new SIM (Subscriber Identity Module) owned by the fraudster.

    Over the past year, we’ve seen reports of SIM-jacking, a particularly malicious attack hackers are using to assume control of victims’ digital and financial lives.

    2018 October 17, Emil Hozan, “Everything Your Need to Know About SIM-Jacking”, in Secplicity
    1 more example

    Variously called sim splitting, simjacking, sim hijacking and port-out scamming, the fraud focuses on moving control of someone’s phone account from their sim card to one controlled by the criminal.

    2020 September 13, Shane Hickey, “Sim-swap fraud is on the rise. How can you stop it happening to you?”, in The Guardian

Synonyms & antonyms

Also see

Origin

Cite this entry
APA

simjacking. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/simjacking

MLA

“simjacking.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/simjacking. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “simjacking,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/simjacking.

Source: simjacking on Wiktionary, CC BY-SA 4.0.