![\"\"\/](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/red_Network-services.png\")
<\/div><\/div>The setup<\/h3><\/div>Stolen personal details
Gathered via phishing or data breaches
<\/div>- <\/li><\/ul><\/div><\/div>The attacker calls your operator posing as you, requesting a replacement SIM<\/div>
- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n
![\"\"\/](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/red_SIM.png\")
<\/div>The hook<\/div><\/span><\/div><\/div>The hook<\/h3><\/div>Just enough ID to pass:
Name, DOB, Address, Account PIN
<\/div><\/div><\/div>‘I’ve lost my phone. I need my number moved to this new SIM.’<\/em><\/div>- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n
![\"\"\/](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/red_Secure-identity.png\")
<\/div>The goal<\/div><\/span><\/div><\/div>The goal<\/h3><\/div>Your phone number
<\/div><\/div><\/div>Every code sent to it, redirected:
Bank OTPs and password resets now go straight to the attacker.
<\/div>- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n
![\"Infographic](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/SIM-swap-1536-x-1034.jpg\")
<\/figure>\n\n\n\n<\/div>\n\n\n\nHow the scam works<\/h2>\n\n\n\n
Scammers rely on urgency and trust. They create time pressure so you act before verifying, and they impersonate a sender you\u2019d normally trust without a second thought.<\/p>\n\n\n\n
\n- Your phone suddenly loses signal or shows ‘no service’ with no explanation<\/li>\n\n\n\n
- You stop receiving calls or texts you were expecting<\/li>\n\n\n\n
- You get an SMS confirming a SIM or number change you didn\u2019t request<\/li>\n\n\n\n
- Account alerts arrive for logins or password resets you didn\u2019t initiate<\/li>\n<\/ul>\n\n\n\n\n\n
How to protect yourself<\/h2>\n\n\n\n\n\n\n- Add a PIN or passcode to your mobile account that\u2019s required for any SIM change<\/li>\n\n\n\n
- Avoid using SMS as your only two-factor method \u2014 use an authenticator app where possible<\/li>\n\n\n\n
- Be cautious what personal details you share publicly (DOB, address) \u2014 these are used to pass identity checks<\/li>\n\n\n\n
- Ask your bank whether it checks for recent SIM changes before approving risky transactions (the GSMA SIM Swap API supports this)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n\n\n\n\n
If you think you’ve been targeted<\/h2>\n\n\n\n
\n![\"Concept](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/GSMA_half_pod_scams_2_710X688.jpg\")
<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\nNational fraud reporting bodies<\/h3>\n\n\n\n\n\n\nUnited Kingdom<\/a><\/h5>\n\n\n\nAction Fraud – report phishing to NCSC<\/a><\/p>\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/NCSC.png\")
<\/figure>\n<\/div>\n\n\n\n\nUnited States<\/a><\/h5>\n\n\n\nFTC (reportfraud.ftc.gov) | FCC<\/a><\/p>\n\n\n\n<\/div>\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/FTC.png\")
<\/figure>\n<\/div>\n\n\n\n\nCanada<\/a><\/h5>\n\n\n\nCanadian Anti-Fraud Centre<\/a><\/p>\n\n\n\n<\/div>\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Government-of-Canada.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n\nAustralia<\/a><\/h5>\n\n\n\nScamwatch (ACCC)<\/a><\/p>\n\n\n\n<\/div>\n\n\n\n![\"Australian](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Scam-watch.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n\nEuropean Union<\/a><\/h5>\n\n\n\nYour national CERT or police cybercrime unit<\/a><\/p>\n\n\n\n![\"ENISA](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Enisa.png\")
<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\nMobile network operators<\/h3>\n\n\n\n
If you think you\u2019ve been targeted by a scam, tell your mobile operator. Reports help operators protect you and other customers. Always contact them through their official website or app, never through links or numbers in a suspicious message. The operators below are examples only, not a complete list. Your operator will explain how to report the scam and what to do next.<\/p>\n\n\n\n
\n\n\nUK networks<\/a><\/h5>\n\n\n\nEE, O2, Vodafone & Three – forward scam texts free to 7726<\/a>
Report text, email or phone fraud directly<\/a><\/p>\n\n\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Ofcom.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n\n![\"A](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Report-fraud.png\")
<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nAT & T (US)<\/a><\/h5>\n\n\n\nReport text, email or phone fraud directly<\/a><\/p>\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/ATT.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n\nVerizon (US)<\/a><\/h5>\n\n\n\nForward suspicious texts claiming to be Verizon<\/a><\/p>\n\n\n\n![\"The](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/Verizon.png\")
<\/a><\/figure>\n<\/div>\n\n\n\n\nT-Mobile (US)<\/a><\/h5>\n\n\n\nScam Shield – report scams and spam<\/a><\/p>\n\n\n\n![\"T-Mobile](\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/09\/T-Mobile.png\")
<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
SIM swap fraud SIM swap fraud starts when a scammer convinces your operator to move your number to another SIM or eSIM. They can then receive your calls and text messages, including one-time codes. With those codes, they may try to access your email, bank or other accounts. How the scam works Scammers rely on […]<\/p>\n","protected":false},"author":10,"featured_media":3245,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"_oasis_task_priority":"","footnotes":""},"tags":[],"class_list":["post-2785","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n
Scam Advice (Fraudulent SIM Swap) - Scams - GSMA<\/title>\n<meta name=\"description\" content=\"SIM swap fraud lets criminals take over your number. Learn the warning signs, how to protect your accounts and what to do next.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scam Advice (Fraudulent SIM Swap) - Scams - GSMA\" \/>\n<meta property=\"og:description\" content=\"SIM swap fraud lets criminals take over your number. Learn the warning signs, how to protect your accounts and what to do next.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/\" \/>\n<meta property=\"og:site_name\" content=\"Scams\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-16T20:58:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/GSMA_half_pod_scams_2_710X688.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"710\" \/>\n\t<meta property=\"og:image:height\" content=\"688\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Scam Advice (Fraudulent SIM Swap) - Scams - GSMA\" \/>\n<meta name=\"twitter:description\" content=\"SIM swap fraud lets criminals take over your number. 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Learn the warning signs, how to protect your accounts and what to do next.","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/","url":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/","name":"Scam Advice (Fraudulent SIM Swap) - Scams - GSMA","isPartOf":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/#primaryimage"},"image":{"@id":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/wp-content\/uploads\/2026\/10\/GSMA_half_pod_scams_2_710X688.jpg","datePublished":"2026-09-04T13:23:43+00:00","dateModified":"2026-10-16T20:58:15+00:00","description":"SIM swap fraud lets criminals take over your number. 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Gathered via phishing or data breaches
<\/div>
- <\/li><\/ul><\/div><\/div>The attacker calls your operator posing as you, requesting a replacement SIM<\/div>
- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<\/div>The hook<\/div><\/span><\/div><\/div>
The hook<\/h3><\/div>
Just enough ID to pass:
Name, DOB, Address, Account PIN
<\/div><\/div><\/div>‘I’ve lost my phone. I need my number moved to this new SIM.’<\/em><\/div>- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n\n\n\n<\/div>The goal<\/div><\/span><\/div><\/div>
The goal<\/h3><\/div>
Your phone number
<\/div><\/div><\/div>Every code sent to it, redirected:
Bank OTPs and password resets now go straight to the attacker.
<\/div>- <\/li><\/ul><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n<\/figure>\n\n\n\n<\/div>\n\n\n\n
How the scam works<\/h2>\n\n\n\n
Scammers rely on urgency and trust. They create time pressure so you act before verifying, and they impersonate a sender you\u2019d normally trust without a second thought.<\/p>\n\n\n\n
- \n
- Your phone suddenly loses signal or shows ‘no service’ with no explanation<\/li>\n\n\n\n
- You stop receiving calls or texts you were expecting<\/li>\n\n\n\n
- You get an SMS confirming a SIM or number change you didn\u2019t request<\/li>\n\n\n\n
- Account alerts arrive for logins or password resets you didn\u2019t initiate<\/li>\n<\/ul>\n\n\n\n\n\n
How to protect yourself<\/h2>\n\n\n\n
\n\n- \n
- Add a PIN or passcode to your mobile account that\u2019s required for any SIM change<\/li>\n\n\n\n
- Avoid using SMS as your only two-factor method \u2014 use an authenticator app where possible<\/li>\n\n\n\n
- Be cautious what personal details you share publicly (DOB, address) \u2014 these are used to pass identity checks<\/li>\n\n\n\n
- Ask your bank whether it checks for recent SIM changes before approving risky transactions (the GSMA SIM Swap API supports this)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n\n\n\n\n
If you think you’ve been targeted<\/h2>\n\n\n\n
\n<\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\nNational fraud reporting bodies<\/h3>\n\n\n\n
\n\n\nUnited Kingdom<\/a><\/h5>\n\n\n\n
Action Fraud – report phishing to NCSC<\/a><\/p>\n\n\n\n
<\/figure>\n<\/div>\n\n\n\n\nUnited States<\/a><\/h5>\n\n\n\n
FTC (reportfraud.ftc.gov) | FCC<\/a><\/p>\n\n\n\n
<\/div>\n\n\n\n<\/figure>\n<\/div>\n\n\n\n\nCanada<\/a><\/h5>\n\n\n\n
Canadian Anti-Fraud Centre<\/a><\/p>\n\n\n\n
<\/div>\n\n\n\n<\/a><\/figure>\n<\/div>\n\n\n\n\nAustralia<\/a><\/h5>\n\n\n\n
Scamwatch (ACCC)<\/a><\/p>\n\n\n\n
<\/div>\n\n\n\n<\/a><\/figure>\n<\/div>\n\n\n\n\nEuropean Union<\/a><\/h5>\n\n\n\n
Your national CERT or police cybercrime unit<\/a><\/p>\n\n\n\n
<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\nMobile network operators<\/h3>\n\n\n\n
If you think you\u2019ve been targeted by a scam, tell your mobile operator. Reports help operators protect you and other customers. Always contact them through their official website or app, never through links or numbers in a suspicious message. The operators below are examples only, not a complete list. Your operator will explain how to report the scam and what to do next.<\/p>\n\n\n\n
\n\n\nUK networks<\/a><\/h5>\n\n\n\n
EE, O2, Vodafone & Three – forward scam texts free to 7726<\/a>
Report text, email or phone fraud directly<\/a><\/p>\n\n\n\n\n\n<\/a><\/figure>\n<\/div>\n\n\n\n\n<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n\nAT & T (US)<\/a><\/h5>\n\n\n\n
Report text, email or phone fraud directly<\/a><\/p>\n\n\n\n
<\/a><\/figure>\n<\/div>\n\n\n\n\nVerizon (US)<\/a><\/h5>\n\n\n\n
Forward suspicious texts claiming to be Verizon<\/a><\/p>\n\n\n\n
<\/a><\/figure>\n<\/div>\n\n\n\n\nT-Mobile (US)<\/a><\/h5>\n\n\n\n
Scam Shield – report scams and spam<\/a><\/p>\n\n\n\n
<\/a><\/figure>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"
SIM swap fraud SIM swap fraud starts when a scammer convinces your operator to move your number to another SIM or eSIM. They can then receive your calls and text messages, including one-time codes. With those codes, they may try to access your email, bank or other accounts. How the scam works Scammers rely on […]<\/p>\n","protected":false},"author":10,"featured_media":3245,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"_oasis_task_priority":"","footnotes":""},"tags":[],"class_list":["post-2785","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\n
Scam Advice (Fraudulent SIM Swap) - Scams - GSMA<\/title>\n<meta name=\"description\" content=\"SIM swap fraud lets criminals take over your number. Learn the warning signs, how to protect your accounts and what to do next.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gsma.com\/solutions-and-impact\/technologies\/security\/scams\/scam-advice-fraudulent-sim-swap\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Scam Advice (Fraudulent SIM Swap) - Scams - GSMA\" \/>\n<meta property=\"og:description\" content=\"SIM swap fraud lets criminals take over your number. 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