{"id":41803,"date":"2015-05-27T07:55:15","date_gmt":"2015-05-27T14:55:15","guid":{"rendered":"http:\/\/www.intego.com\/mac-security-blog\/?p=41803"},"modified":"2026-08-08T06:05:13","modified_gmt":"2026-08-08T13:05:13","slug":"crash-text-message-iphone","status":"publish","type":"post","link":"https:\/\/www.intego.com\/mac-security-blog\/crash-text-message-iphone\/","title":{"rendered":"Watch Out! This Boobytrapped Text Message Will Turn Off Your iPhone"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41812\" src=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/death-message-600x300.jpeg\" alt=\"Watch out! This boobytrapped text message will turn off your iPhone\" width=\"600\" height=\"300\" srcset=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/death-message-600x300.jpeg 600w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/death-message-600x300-150x75.jpeg 150w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/death-message-600x300-300x150.jpeg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>If you send a specific string of symbols and Arabic characters to another iPhone user, you can really ruin their day.<\/p>\n<p>The problem, which occurs when you receive a notification of a new iMessage either on a locked iPhone or as a drop-down iOS notification, causes iPhones to restart, and is preventing some users from accessing other legitimate messages that have been sent to them.<\/p>\n<p>The sequence of characters needed to remotely reboot an iPhone was posted on <a title=\"Link to Reddit post\" href=\"http:\/\/www.reddit.com\/r\/iphone\/comments\/37eaxs\/um_can_someone_explain_this_phenomenon\/\" target=\"_blank\">Reddit<\/a>, and \u2014\u00a0for understandable reasons \u2014\u00a0has spread like wildfire across the Internet via social networking iPhone users.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41806\" src=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/iphone-text-message.jpeg\" alt=\"Twitter users share the malicious iPhone text message\" width=\"600\" height=\"324\" srcset=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/iphone-text-message.jpeg 600w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/iphone-text-message-150x81.jpeg 150w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/iphone-text-message-300x162.jpeg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>The following <a title=\"Link to YouTube video\" href=\"https:\/\/www.youtube.com\/watch?v=kcifpTa7E1g\" target=\"_blank\" rel=\"nofollow\">YouTube video<\/a> shows you what happens (so you don&#8217;t have to try it for yourself):<\/p>\n<p><iframe loading=\"lazy\" title=\"This Text Message Can Crash Any iPhone\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/kcifpTa7E1g?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>The problem appears to be associated with how iOS&#8217;s banner notifications and Messages app handle the Unicode characters in the boobytrapped message. Clearly, your poor little iPhone has a brainstorm, not knowing how to handle the display of the non-alphabetical characters properly and decides the best policy is to quietly fall over, restarting your &#8220;smartphone.&#8221;<\/p>\n<p>If Apple&#8217;s engineers had properly handled the exception error caused by the clearly unexpected unicode characters, then things would have been a whole lot more graceful.<\/p>\n<p>For anyone who is having trouble getting their iPhone to work again properly, MacRumors has some <a title=\"Link to MacRumors report\" href=\"http:\/\/www.macrumors.com\/2015\/05\/26\/ios-bug-crashing-iphones-with-text-message\/\" target=\"_blank\" rel=\"nofollow\">suggestions<\/a> on how to get back into your Messages app. Of course, there&#8217;s nothing stopping someone from sending you the message again. Sigh&#8230;<\/p>\n<p>However, if your iPhone is getting bombarded with the new Unicode crash\u00a0message, security guru Mikko Hypponen\u00a0tweeted this recommendation:<\/p>\n<blockquote class=\"twitter-tweet\" lang=\"en\">\n<p dir=\"ltr\" lang=\"en\">If your iPhone is getting bombarded with the new Unicode crash message, do this: Settings\u21d2Notifications\u21d2Messages\u21d2Show Previews\u21d2OFF<\/p>\n<p>\u2014 Mikko Hypponen (@mikko) <a href=\"https:\/\/twitter.com\/mikko\/status\/603572146070286337\">May 27, 2015<\/a><\/p><\/blockquote>\n<p><script src=\"\/\/platform.twitter.com\/widgets.js\" async=\"\" charset=\"utf-8\"><\/script><\/p>\n<p>This is a salutary reminder that all complex code contains bugs and flaws \u2014\u00a0some more serious than others \u2014\u00a0and even a shiny new Apple device may have lurking within it undiscovered vulnerabilities that others could exploit if they were so minded.<\/p>\n<p>According to some reports, the current &#8220;message of death&#8221; has been present since iOS 6.0. Now, of course, the onus is on Apple&#8217;s engineers to release a security update as quickly as possible \u2014\u00a0before too many people start pranking each other by remotely rebooting iPhones through malicious messages.<\/p>\n<p>If nothing else, as <a href=\"https:\/\/twitter.com\/ForeverStyles_x\/status\/603526241149386752\" target=\"_blank\">this Twitter user commented<\/a>, at least it gives everyone who doesn&#8217;t own an iPhone a reason not to feel envious of their Apple-loving friends.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41809\" src=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/tweet.jpeg\" alt=\"Tweet from a non-iPhone user\" width=\"575\" height=\"68\" srcset=\"https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/tweet.jpeg 575w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/tweet-150x17.jpeg 150w, https:\/\/www.intego.com\/mac-security-blog\/wp-content\/uploads\/2015\/05\/tweet-300x35.jpeg 300w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/p>\n<p>What makes this somewhat embarrassing for Apple is that it has been bedevilled in the past with problems associated with \u2014\u00a0yes, you guessed it \u2014\u00a0Arabic characters crashing devices. In fact, back in August 2013, both iOS and OS X had been <a title=\"Link to Ars Technica\" href=\"http:\/\/arstechnica.com\/apple\/2013\/08\/rendering-bug-crashes-os-x-and-ios-apps-with-string-of-arabic-characters\/\" target=\"_blank\" rel=\"nofollow\">vulnerable to just such a flaw<\/a>.<\/p>\n<p>More recently, Apple released iOS 8.2 earlier this year, fixing another vulnerability that allowed attackers to <a href=\"https:\/\/grahamcluley.com\/2015\/03\/ios-8-2-stops-attackers-being-able-to-restart-your-iphone-with-a-malicious-flash-sms\/\" target=\"_blank\">restart your iPhone with a malicious Flash SMS<\/a>.<\/p>\n<p>It seems to me that Apple&#8217;s team needs to spend a little more time recognising that they have failed to properly handle these kind of flaws, and that they keep cropping up. Clearly it needs to be more diligent in the future to prevent reoccurrences.<\/p>\n<p>Apple is surely aware of this latest incarnation of the problem, so don&#8217;t be surprised if a security update is rolled out in the near future. But I wonder if it&#8217;s the last we&#8217;ve heard of this kind of bug?<\/p>\n<p><strong>Update, July 1<\/strong>: Apple rolled out a security update with the release of iOS 8.4, fixing this bug, as well as a wide range of other issues affecting iOS devices. For more details, see: <a title=\"iOS 8.4 Update Fixes Text Message Bug Causing iPhones to Restart\" href=\"https:\/\/www.intego.com\/mac-security-blog\/ios-8-4-update-fixes-text-message-bug-iphone-restart\/\" target=\"_blank\">iOS 8.4 Update Fixes Text Message Bug Causing iPhones to Restart<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you send a specific string of symbols and Arabic characters to another iPhone user, you can really ruin their day.<\/p>\n<p>And, it turns out, this isn&#8217;t the first time that Apple has been plagued with a problem like this&#8230;<\/p>\n","protected":false},"author":34,"featured_media":41815,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,151,11],"tags":[35,563,69,9,2209,2215,2212],"class_list":["post-41803","post","type-post","status-publish","format-standard","has-post-thumbnail","category-apple","category-recommended","category-software-apps","tag-bug","tag-imessage","tag-ios","tag-iphone","tag-messages","tag-text","tag-unicode"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"If you send a specific string of symbols and Arabic characters to another iPhone user, you can really ruin their day. 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And, it turns out, this isn't the first time that Apple has been plagued with a problem like this...","twitter:creator":"@IntegoSecurity"},"aioseo_meta_data":{"post_id":"41803","title":null,"description":null,"keywords":null,"keyphrases":null,"focus_keyword":null,"additional_keywords":null,"truseo_locale":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_custom_url":null,"og_image_custom_fields":null,"og_image_url":null,"og_image_width":null,"og_image_height":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_image_url":null,"twitter_title":null,"twitter_description":null,"schema_type":"default","schema_type_options":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":"2026-09-03 18:51:22","created":"2026-09-03 18:51:22","updated":"2026-09-04 14:05:20","reviewed_by":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/www.intego.com\/mac-security-blog\" title=\"Home\">Home<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t<a href=\"https:\/\/www.intego.com\/mac-security-blog\/category\/apple\/\" title=\"Apple\">Apple<\/a>\n<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\tWatch Out! 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