Cybercrime

Salt Typhoon targets routers in sweeping campaign

Since early 2025, the Chinese-linked hacking group Salt Typhoon has aggressively targeted telecom infrastructure worldwide, compromising routers, switches and edge devices used by clients of major operators such as Comcast, MTN and LG Uplus.

Exploiting known but unpatched vulnerabilities, attackers gained persistent access to these network devices, potentially enabling further intrusions into core telecom systems.

The pattern suggests a strategic shift: the group broadly sweeps telecom infrastructure to establish ready-made access across critical communication channels.

Affected providers emphasised that only client-owned hardware was breached and confirmed no internal networks were compromised, but the campaign raises deeper concerns.

Experts warn that such indiscriminate telecommunications targeting could threaten data security and disrupt essential services, revealing a long-term cyber‑espionage strategy.

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Nvidia’s container toolkit patched after critical bug

Cloud security researchers at Wiz have uncovered a critical misconfiguration in Nvidia’s Container Toolkit, used widely across managed AI services, that could allow a malicious container to break out and gain full root privileges on the host system.

The vulnerability, tracked as CVE‑2025‑23266 and nicknamed ‘NVIDIAScape’, arises from unsafe handling of OCI hooks. Exploiters can bypass container boundaries by using a simple three‑line Dockerfile, granting them access to server files, memory and GPU resources.

With Nvidia’s toolkit integral to GPU‑accelerated cloud offerings, the risk is systemic. A single compromised container could steal or corrupt sensitive data and AI models belonging to other tenants on the same infrastructure.

Nvidia has released a security advisory alongside updated toolkit versions. Users are strongly advised to apply patches immediately. Experts also recommend deploying additional isolation measures, such as virtual machines, to protect against container escape threats in multi-tenant AI environments.

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Crypto crime surges to record levels in 2025

The cryptocurrency industry faces a record-breaking year for theft in 2025, with losses surpassing $2.17 billion by mid-July, according to a Chainalysis report. The amount stolen so far has surpassed the total for all of 2024, highlighting a concerning increase in digital asset crime.

A large proportion, around $1.5 billion, stems from the North Korea-linked Bybit hack, which accounts for nearly 70% of thefts targeting crypto services this year.

While centralised exchanges remain prime targets, personal wallets now represent almost a quarter of stolen funds. The report highlights a rise in violent ‘wrench attacks,’ where criminals coerce Bitcoin holders into revealing private keys through threats or physical force.

Kidnappings of crypto executives and family members have also increased, with 2025 expected to double the number of such physical assaults compared to previous years.

Sophistication in laundering stolen crypto varies depending on the target. Hackers focusing on exchanges use advanced techniques like chain-hopping and mixers to obscure transactions.

Conversely, attackers targeting personal wallets often employ simpler methods. Interestingly, criminals are holding stolen assets longer and are willing to pay fees up to 14.5 times higher than average to swiftly move illicit funds and avoid detection.

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Hackers hide malware using DNS TXT records

Hackers are increasingly exploiting DNS records to deliver malware undetected, according to new research from DomainTools.

Instead of relying on typical delivery methods such as emails or downloads, attackers now hide malicious code within DNS TXT records, part of the Domain Name System, often overlooked by security systems.

The method involves converting malware into hexadecimal code, splitting it into small segments, and storing each chunk in the TXT record of subdomains under domains like whitetreecollective.com.

Once attackers gain limited access to a network, they retrieve these chunks via ordinary-looking DNS queries, reassembling them into functioning malware without triggering antivirus or firewall alerts.

The rising use of encrypted DNS protocols like DNS-over-HTTPS and DNS-over-TLS makes detecting such queries harder, especially without in-house DNS resolvers equipped for deep inspection.

Researchers also noted that attackers are using DNS TXT records for malware and embedding harmful text designed to manipulate AI systems through prompt injection.

Ian Campbell of DomainTools warns that even organisations with strong security measures struggle to detect such DNS-based threats due to the hidden nature of the traffic.

Instead of focusing solely on traditional defences, organisations are advised to monitor DNS traffic closely, log and inspect queries through internal resolvers, and restrict DNS access to trusted sources. Educating teams on these emerging threats remains essential for maintaining robust cybersecurity.

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China now the top DDoS target, says Cloudflare

Cloudflare’s latest DDoS threat report reveals that business competitors initiate most known attacks. Of the customers who identified attackers, 63% blamed rivals, 21% pointed to state-linked actors, and 5% admitted self-inflicted disruptions caused by misconfigurations.

The Q2 report shows China as the most targeted country, followed by Brazil and Germany, while Ukraine, Singapore and Indonesia are listed among the top sources of DDoS traffic. Telecommunications, internet services and gaming are the industries most frequently targeted by attackers.

Cloudflare highlighted that the locations identified as sources often reflect the presence of botnets, proxies or VPNs, not the actual location of threat actors. Countries like the Netherlands appear high on the list due to favourable privacy laws and strong network infrastructure.

The company urged broader participation in its threat intelligence feed to help mitigate risks. Over 600 providers currently use Cloudflare’s data to remove abusive accounts and stop the spread of DDoS attacks across the internet.

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EU helps Vietnam prepare for cyber emergencies

The European Union and Vietnam have conducted specialised cyber‑defence training to enhance the resilience of key infrastructure sectors such as power, transportation, telecoms and finance.

Participants, including government officials, network operators and technology experts, engaged in interactive threat-hunting exercises and incident simulation drills designed to equip teams with practical cyber‑response skills.

This effort builds on existing international partnerships, including collaboration with the US Cybersecurity and Infrastructure Security Agency, to align Vietnam’s security posture with global standards.

Vietnam faces an alarming shortfall of more than 700,000 cyber professionals, with over half of organisations reporting at least one breach in recent years.

The training initiative addresses critical skills gaps and contributes to national digital security resilience.

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Trojanised Telegram APKs target Android users with Janus exploit

A large Android malware campaign has been uncovered, distributing trojanised versions of Telegram Messenger via more than 600 malicious domains. The operation uses phishing infrastructure and evasion techniques to deceive users and deliver infected APK files.

Domains exploit typosquatting, with names like ‘teleqram’ and ‘apktelegram’, and mimic Telegram’s website using cloned visuals and QR code redirects. Users are sent to zifeiji[.]asia, which hosts a fake Telegram site offering APK downloads between 60MB and 70MB.

The malware targets Android versions 5.0 to 8.0, exploiting the Janus vulnerability and bypassing security via legacy signature schemes. After installation, it establishes persistent access using socket callbacks, enabling remote control.

It communicates via unencrypted HTTP and FTP, and uses Android’s MediaPlayer component to trigger background activity unnoticed. Once installed, it requests extensive permissions, including access to all locally stored data.

Domains involved include over 300 on .com, with many registered through Gname, suggesting a coordinated and resilient campaign structure.

Researchers also found a JavaScript tracker embedded at telegramt.net, which collects browser and device data and sends it to dszb77[.]com. The goal appears to be user profiling and behavioural analysis.

Experts warn that the campaign’s scale and technical sophistication pose a significant risk to users running outdated Android systems.

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Experts link Qantas data breach to AI voice impersonation

Cybersecurity experts believe criminals may have used AI-generated voice deepfakes to breach Qantas systems, potentially deceiving contact centre staff in Manila. The breach affected nearly six million customers, with links to a group known as Scattered Spider.

Qantas confirmed the breach after detecting suspicious activity on a third-party platform. Stolen data included names, phone numbers, and addresses—but no financial details. The airline has not confirmed whether voice impersonation was involved.

Experts point to Scattered Spiders’ history of using synthetic voices to trick help desk staff into handing over credentials. Former FBI agent Adam Marré said the technique, known as vishing, matches the group’s typical methods and links them to The Com, a cybercrime collective.

Other members of The Com have targeted companies like Salesforce through similar tactics. Qantas reportedly warned contact centre staff shortly before the breach, citing a threat advisory connected to Scattered Spider.

Google and CrowdStrike reported that the group frequently impersonates employees over the phone to bypass multi-factor authentication and reset passwords. The FBI has warned that Scattered Spider is now targeting airlines.

Qantas says its core systems remain secure and has not confirmed receiving a ransom demand. The airline is cooperating with authorities and urging affected customers to watch for scams using their leaked information.

Cybersecurity firm Trend Micro notes that voice deepfakes are now easy to produce, with convincing audio clips available for as little as $5. The deepfakes can mimic language, tone, and emotion, making them powerful tools for deception.

Experts recommend biometric verification, synthetic signal detection, and real-time security challenges to counter deepfakes. Employee training and multi-factor authentication remain essential defences.

Recent global cases illustrate the risk. In one instance, a deepfake mimicking US Senator Marco Rubio attempted to access sensitive systems. Other attacks involved cloned voices of US political figures Joe Biden and Susie Wiles.

As voice content becomes more publicly available, experts warn that anyone sharing audio online could become a target for AI-driven impersonation.

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Salt Typhoon compromises critical US infrastructure

A US state’s Army National Guard network was thoroughly compromised by the Chinese cyberespionage group Salt Typhoon from March to December 2024. According to a confidential federal memo, hackers extracted highly sensitive information, including administrator credentials, network maps, and interstate communication data, raising alarm over data leaked across all 50 states and four US territories.

Security analysts caution that the breach goes beyond intelligence gathering. With access to National Guard systems, integral to state-level threat response and civilian support, the group is poised to exploit vulnerabilities in critical infrastructure, particularly during crises or conflict.

Salt Typhoon, linked to China’s Ministry of State Security, has a track record of penetrating telecommunications, energy grids, transport systems, and water utilities. Often leveraging known vulnerabilities in Cisco and Palo Alto equipment, the group has exfiltrated over 1,400 network configuration files from more than 70 US critical infrastructure providers.

Federal agencies, including DHS and CISA, are sounding the alarm: this deep infiltration presents a serious national security threat and indicates a strategic shift in cyber warfare. Navigating Sun Typhoon’s persistent access through local and federal networks is now a top priority in defending the critical systems on which communities rely.

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EU sends warning to crypto platforms over AML risks

The EU’s Anti-Money Laundering Authority (AMLA) has warned that fragmented oversight and inconsistent rules pose significant risks to the bloc’s financial integrity. Chair Bruna Szego urged regulators and crypto firms to prepare for stricter anti-money laundering rules.

The Frankfurt-based agency, now operational, will oversee the enforcement of new EU-wide anti-money laundering regulations. Szego stressed the importance of identifying the beneficial owners of crypto platforms and ensuring they are not linked to criminal networks.

Concerns over inconsistent controls across EU countries and diverging interpretations of MiCA requirements have grown. Crypto firms must be prepared to meet the different standards across all jurisdictions they plan to operate.

From July 2027, crypto platforms will be required to block anonymous wallets and provide authorities with complete, real-time access to account data.

Major firms like Binance have already faced regulatory penalties, with ongoing investigations highlighting the rising pressure on the sector.

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