According to Kaspersky Lab’s 2023 Mobile Threat Report, the security risks posed by third-party modified instant messaging applications are significantly higher than those from official channels. The report statistics show that the probability of such applications being implanted with malicious code is as high as 30%, among which malicious software specifically targeting financial fraud accounts for 17%. When a user performs the “download gbwhatsapp” operation, they may unknowingly download a variant version containing a spy module. For instance, in 2022, over 2 million users in Brazil suffered from bank certificate theft incidents due to the use of unofficial modified versions of WhatsApp, with an average loss of 380 US dollars per victim. These applications are usually distributed through unofficial channels, completely bypassing the 64-layer security detection mechanism of the Google Play Store.
From a technical perspective, such applications have serious data leakage vulnerabilities. In a penetration test conducted in 2023, cybersecurity firm Check Point discovered that all five popular GBWhatsApp versions tested had issues with unencrypted local database storage, where user messages and media files were stored in plaintext. An attacker only needs to have access to the physical device for 10 minutes to extract over 95% of the user’s data. What’s more serious is that three of the versions have a remote code execution vulnerability (CVE-2023-4863), with an attack success rate as high as 78%. These vulnerabilities enable hackers to take full control of user accounts, steal two-factor authentication codes, and access all communication histories.
In terms of privacy compliance, according to the investigation report released by the EU GDPR regulatory body in 2024, the data collection scope of non-official communication applications exceeds the necessary limit by more than 40%. These applications typically require 86 permission requests, while official applications only need 32. Among them, the most dangerous is the accessibility service permission, which enables the application to monitor the keyboard input records of users in other applications. In 2023, the Indian cybersecurity agency CERT-IN reported that a version of GBWhatsApp, which had been downloaded over 50 million times, had a hidden screen recording function that could capture 15 screen images per minute and upload them to overseas servers.
Compared with the official WhatsApp, these modified applications lack a key security update mechanism. Meta’s security team disclosed that in 2023, the official WhatsApp released a total of 12 security updates, fixing 45 vulnerabilities, and the update push coverage rate reached 99.8% of active devices. However, third-party versions usually take more than 90 days to merge security patches, and some versions even stop updating completely. According to monitoring data from mobile security firm Zimperium, 63% of the GBWhatsApp versions still in circulation have at least five known high-risk vulnerabilities, which have long been fixed in the official application. For every month a user delays an update, the probability of being attacked increases by 27%.