What is a Kill Switch and how do I deactivate my World Account immediately?

1.0WorldFirst SGhttps://www.worldfirst.com/sgyangjiehttps://www.worldfirst.com/sg/author/yangjie/What is a Kill Switch and how do I deactivate my World Account immediately?rich600338<blockquote class="wp-embedded-content" data-secret="heFwBa4gyf"><a href="https://www.worldfirst.com/sg/help-center/account-management/kill-switch/">What is a Kill Switch and how do I deactivate my World Account immediately?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.worldfirst.com/sg/help-center/account-management/kill-switch/embed/#?secret=heFwBa4gyf" width="600" height="338" title="“What is a Kill Switch and how do I deactivate my World Account immediately?” — WorldFirst SG" data-secret="heFwBa4gyf" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> This function is available only for Singapore Sole Proprietors. The Kill Switch function immediately disables your access to and payment services for World Account and freezes all associated World Card(s). You should enable the Kill Switch function only if you are a victim of scam or suspect your account and/or cards have been compromised. Once […]https://mdn.marmot-cloud.com/worldfirst/sites/9/2026/01/20260128162839115.png38401986 {"version":"1.0","provider_name":"WorldFirst SG","provider_url":"https:\/\/www.worldfirst.com\/sg","author_name":"yangjie","author_url":"https:\/\/www.worldfirst.com\/sg\/author\/yangjie\/","title":"What is a Kill Switch and how do I deactivate my World Account immediately?","type":"rich","width":600,"height":338,"html":"

What is a Kill Switch and how do I deactivate my World Account immediately?<\/a><\/blockquote><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n<\/script>\n","description":"This function is available only for Singapore Sole Proprietors. The Kill Switch function immediately disables your access to and payment services for World Account and freezes all associated World Card(s). You should enable the Kill Switch function only if you are a victim of scam or suspect your account and\/or cards have been compromised. Once […]","thumbnail_url":"https:\/\/mdn.marmot-cloud.com\/worldfirst\/sites\/9\/2026\/01\/20260128162839115.png","thumbnail_width":3840,"thumbnail_height":1986}