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This Bug Could Have Let Anyone Crash WhatsApp Of All Group Members

This Bug Could Have Let Anyone Crash WhatsApp Of All Group Members

Dec 17, 2019
WhatsApp, the world's most popular end-to-end encrypted messaging application, patched an incredibly frustrating software bug that could have allowed a malicious group member to crash the messaging app for all members of the same group, The Hacker News learned. Just by sending a maliciously crafted message to a targeted group, an attacker can trigger a fully-destructive WhatsApp crash-loop, forcing all group members to completely uninstall the app, reinstall it, and remove the group to regain normal function. Since the group members can't selectively delete the malicious message without opening the group window and re-triggering the crash-loop, they have to lose the entire group chat history, indefinitely, to get rid of it. Discovered by researchers at Israeli cybersecurity firm Check Point , the latest bug resided in the WhatsApp's implementation of XMPP communication protocol that crashes the app when a member with invalid phone number drops a message in the grou
How to Crash Your Friends' WhatsApp Just By Sending Crazy Smileys

How to Crash Your Friends' WhatsApp Just By Sending Crazy Smileys

Dec 22, 2015
What would require crashing the wildly popular WhatsApp messaging application? Nearly 4000 Smileys . Yes, you can crash your friends'  WhatsApp , both WhatsApp Web and mobile application, by sending them not any specially crafted messages, but just Smileys. Indrajeet Bhuyan , an independent researcher, has reported The Hacker News a new bug in WhatsApp that could allow anyone to remotely crash most popular messaging app just by sending nearly 4000 emojis to the target user, thereby affecting up to 1 Billion users. Bhuyan is the same researcher who reported a very popular WhatsApp crash bug last year that required 2000 words ( 2kb in size ) message in the special character set to remotely crash Whatsapp messenger app. After this discovery, the company patched the bug by setting up the limits of characters in WhatsApp text messages, but unfortunately, it failed to set up limits for smileys send via WhatsApp. "In WhatsApp Web, Whatsapp allows 65500-660
How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

How to Increase Engagement with Your Cybersecurity Clients Through vCISO Reporting

Jul 22, 2024vCISO / Business Security
As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.
Crash Your Friends' WhatsApp Remotely with Just a Message

Crash Your Friends' WhatsApp Remotely with Just a Message

Dec 01, 2014
A Vulnerability has been discovered in the wildly popular messaging app WhatsApp , which allows anyone to remotely crash WhatsApp just by sending a specially crafted message, two security researchers reported ' The Hacker News '. Two India based independent security researchers, Indrajeet Bhuyan and Saurav Kar, both 17-year old teenagers demonstrated the WhatsApp Message Handler vulnerability to one of our security analyst. In a video demonstration, they showed that how a 2000 words (2kb in size) message in special character set can crash Whatsapp messenger app. Previous it was discovered that sending a huge message ( greater than 7mb in size) on Whatsapp could crash victim device and app immediately, but using this new exploit attacker only need to send a very small size (approx 2kb) message to the victim. The worried impact of the vulnerability is that the user who received the specially crafted message will have to delete his/her whole conversation and start a fresh
cyber security

Free OAuth Investigation Checklist - How to Uncover Risky or Malicious Grants

websiteNudge SecuritySaaS Security / Supply Chain
OAuth grants provide yet another way for attackers to compromise identities. Download our free checklist to learn what to look for and where when reviewing OAuth grants for potential risks.
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