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Can Mimicking be Dangerous? Hackers Using Artificial Intelligence to Impersonate CEOs’ Voices

Today, there are already programmes that, after listening 20 minutes to a particular voice, speak in the voice everything that the user types

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hackers, AI
The method of attack escalates and includes the use of the AI-based software, which makes voice phishing calls to senior executives. Pixabay

In a warning, an Israeli cyber body has unearthed a new type of attack where hackers are using Artificial Intelligence (AI) technology to impersonate senior company executives. The main innovation is the attacking software, which learns to mimic the voice of a person defined for it and makes a conversation with an employee on behalf of the Chief Executive Officer (CEO).

The most common types are phishing messages and an invoicing fraud in which the attacker impersonates the vendor, submits an invoice to the company and tries to motivate an employee under time pressure to make a bank transfer, provide information or allow access to the company’s network, informed the Israel National Cyber Directorate (INCD).

In this method, instructions are given to the companies staff members to perform transactions such as money transfers, as well as malicious activity on the company’s network. Reports on cyber attacks of this kind were received at the operations centre of the INCD, reports Xinhua.

hackers, AI
In this method, instructions are given to the companies staff members to perform transactions such as money transfers, as well as malicious activity on the company’s network. Pixabay

The new offensive is of the business email compromise (BEC) type — frauds by email against commercial and government organizations to motivate employees using social engineering methods to act for the attacker’s benefit.

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The method of attack escalates and includes the use of the AI-based software, which makes voice phishing calls to senior executives. Today, there are already programmes that, after listening 20 minutes to a particular voice, speak in the voice everything that the user types. According to the INCD, for an organization that falls prey to such fraud, economic damage may be high.

In its announcement, the INCD also issued suggestions for taking precautions and raising awareness among organizations — such as training employees, paying attention to deviations in organizational processes, verifying instructions and using technological means to prevent misuse of email. (IANS)

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Researchers Reveal Vulnerabilities that Allowed Hackers to Manipulate Images on WhatsApp and Telegram

WhatsApp saves files to external storage automatically, while Telegram does so when the "Save to Gallery" feature is enabled

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Hackers, Images, Whatsapp
The security flaw, dubbed "Media File Jacking", affected WhatsApp for Android by default. Pixabay

If you thought instant messaging platforms like WhatsApp and Telegram that provide end-to-end encryption give you rock-solid security, think again. Researchers from cyber-security firm Symantec on Monday revealed vulnerabilities that allowed hackers to manipulate the images and audio files you receive on these platforms.

The security flaw, dubbed “Media File Jacking”, affected WhatsApp for Android by default, and Telegram for Android if certain features were enabled, Symantec researchers said in a blog post.

According to the researchers, WhatsApp saves files to external storage automatically, while Telegram does so when the “Save to Gallery” feature is enabled. However, neither apps have any system in place to protect users from a Media File Jacking attack, the researchers from Symantec’s Modern OS Security team explained.

Attackers could exploit this vulnerability to scam victims in various ways.

Hackers, Images, Whatsapp
If you thought instant messaging platforms like WhatsApp and Telegram that provide end-to-end encryption give you rock-solid security, think again. Pixabay

“If the security flaw is exploited, a malicious attacker could misuse and manipulate sensitive information such as personal photos and videos, corporate documents, invoices, and voice memos,” wrote Software Engineer Alon Gat and Yair Amit, Vice-President and Chief Technology Officer, Modern OS Security, Symantec.

Giving example of image manipulation, the researchers said a seemingly innocent, but actually malicious, app downloaded by a user could manipulate personal photos in near-real time and without the victim knowing.

The app runs in the background and performs a “Media File Jacking attack” while the victim uses WhatsApp. It monitors for photos received through the app, identifies faces in photos, and replaces them with something else, such as other faces or objects.

“A WhatsApp user may send a family photo to one of their contacts, but what the recipient sees is actually a modified photo. While this attack may seem trivial and just a nuisance, it shows the feasibility of manipulating images on the fly,” said the blog post.

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Using the same vulnerability, the attackers could make payment manipulation, audio message spoofing or spread fake news.

“In one of the most damaging Media File Jacking attacks, a malicious actor can manipulate an invoice sent by a vendor to a customer, to trick the customer into making a payment to an illegitimate account,” Gat and Amit wrote.

“The Media File Jacking threat is especially concerning in light of the common perception that the new generation of IM (instant messaging) apps are immune to content manipulation and privacy risks, thanks to the utilisation of security mechanisms like end-to-end encryption,” they added.

Hackers, Images, Whatsapp
Researchers from cyber-security firm Symantec on Monday revealed vulnerabilities that allowed hackers to manipulate the images and audio files. Pixabay

Reports in May revealed that a bug in WhatsApp’s audio call feature allowed hackers to install spyware onto Android and iOS phones just by calling the target. The spyware was reportedly developed by the Israeli cyber intelligence company NSO Group.

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WhatsApp had said it identified and “promptly” fixed the vulnerability that could enable an attacker to insert and execute code on mobile devices. (IANS)