Salesforce customers hit by OAuth token breach

Security researchers have warned Salesforce customers after hackers stole data by exploiting OAuth access tokens linked to the Salesloft Drift integration, highlighting critical cybersecurity flaws.

Google’s Threat Intelligence Group (GTIG) reported that the threat actor UNC6395 used the tokens to infiltrate hundreds of Salesforce environments, exporting large volumes of sensitive information. Stolen data included AWS keys, passwords, and Snowflake tokens.

Experts warn that compromised SaaS integrations pose a central blind spot, since attackers inherit the same permissions as trusted apps and can often bypass multifactor authentication. Investigations are ongoing to determine whether connected systems, such as AWS or VPNs, were also breached.

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Claude chatbot misused in unprecedented cyber extortion case

A hacker exploited Anthropic’s Claude chatbot to automate one of the most extensive AI-driven cybercrime operations yet recorded, targeting at least 17 companies across multiple sectors, the firm revealed.

According to Anthropic’s report, the attacker used Claude Code to identify vulnerable organisations, generate malicious software, and extract sensitive files, including defence data, financial records, and patients’ medical information.

The chatbot then sorted the stolen material, identified leverage for extortion, calculated realistic bitcoin demands, and even drafted ransom notes and extortion emails on behalf of the hacker.

Victims included a defence contractor, a financial institution, and healthcare providers. Extortion demands reportedly ranged from $75,000 to over $500,000, although it remains unclear how much was actually paid.

Anthropic declined to disclose the companies affected but confirmed new safeguards are in place. The firm warned that AI lowers the barrier to entry for sophisticated cybercrime, making such misuse increasingly likely.

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Fragmenting digital identities with aliases offers added security

People often treat their email address as harmless, just a digital ID for receipts and updates. In reality, it acts as a skeleton key linking behaviour, purchases, and personal data across platforms.

Using the same email everywhere makes tracking easy. Companies may encrypt addresses, but behavioural patterns remain intact. Aliases disrupt this chain by creating unique addresses that forward mail without revealing your true identity.

Each alias becomes a useful tracker. If one is compromised or starts receiving spam, it can simply be disabled, cutting off the problem at its source.

Aliases also reduce the fallout of data breaches. Instead of exposing your main email to countless third-party tools, scripts, and mailing platforms, an alias shields your core digital identity.

Beyond privacy, aliases encourage healthier habits. They force a pause before signing up, add structure through custom rules, and help fragment your identity, thereby lowering the risks associated with any single breach.

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TransUnion breach affects 4.5 million US consumers, highlighting rising third-party cyberattack threats

TransUnion, a US consumer credit reporting agency, has suffered a data breach, impacting the personal information of nearly 4.5 million Americans. The breach, detected on 30 July 2025, involved unauthorised access to a third-party application used in its US consumer support operations.

Although credit reports and core credit data were not exposed, specific personal details were compromised. TransUnion is offering affected customers free credit monitoring and fraud assistance. The agency highlighted its commitment to robust security measures and ongoing improvements. The incident follows previous breaches in 2022 and 2023, raising concerns about TransUnion’s overall data protection and third-party risks.

The recent TransUnion breach follows several high-profile data incidents involving third-party compromises. In June 2025, banking giant UBS was affected after its procurement provider Chain IQ was attacked.

In July, Allianz Life reported personal data theft from 1.4 million US customers via a third-party cloud-based CRM breach. Australian airline Qantas also disclosed a breach impacting nearly six million customers through a third-party service platform.

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Espionage fears rise as TAG-144 evolves techniques

A threat group known as TAG-144 has stepped up cyberattacks on South American government agencies, researchers have warned.

The group, also called Blind Eagle and APT-C-36, has been active since 2018 and is linked to espionage and extortion campaigns. Recent activity shows a sharp rise in cybercrime, spear-phishing, often using spoofed government email accounts to deliver remote access trojans.

Analysts say the group has shifted towards more advanced methods, embedding malware inside image files through steganography. Payloads are then extracted in memory, allowing attackers to evade antivirus software and maintain access to compromised systems.

Colombian government institutions have been hit hardest, with stolen credentials and sensitive data raising concerns over both financial and national security risks. Security experts warn that TAG-144’s evolving tactics blur the line between organised crime and state-backed espionage.

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Microsoft uncovers strategic cloud-based ransomware

The Microsoft Threat Intelligence team has warned about a financially motivated threat actor known as Storm-0501. The group has been adapting tactics to steal data stored in the cloud and lock companies out of their systems. Essentially, these cloud-based ransomware tactics enable the threat actors to rapidly exfiltrate large volumes of data while destroying backups and demanding ransoms.

It was also found that they targeted subsidiaries lacking Microsoft security tools to evade detection, moved laterally across the network, and exploited an account that did not have multi-factor authentication enabled. After resetting the account’s password and registering their own Multi-Factor Authentication (MFA) method, they gained full access to the cloud environment, created a backdoor, and accessed critical assets. The hacker stole sensitive data, deleted backups, and demanded a ransom, demonstrating a calculated and strategic approach to breaching the organisation’s defences.

According to The Record, several security firms have reported that former ransomware hackers are now targeting data stored in the cloud. Over the past year, major breaches have involved the theft of data from providers such as Snowflake and Salesforce.

Recently, Google identified a campaign in which attackers used a third-party service to steal Salesforce data. Their goal was to obtain login credentials, allowing them to compromise victim environments further and potentially pivot into the systems of clients or partners, signalling a shift towards more strategic, credential-focused cloud attacks.

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Attackers bypass email security by abusing Microsoft Teams defaults

A phishing campaign exploits Microsoft Teams’ external communication features, with attackers posing as IT helpdesk staff to gain access to screen sharing and remote control. The method sidesteps traditional email security controls by using Teams’ default settings.

The attacks exploit Microsoft 365’s default external collaboration feature, which allows unauthenticated users to contact organisations. Axon Team reports attackers create malicious Entra ID tenants with .onmicrosoft.com domains or use compromised accounts to initiate chats.

Although Microsoft issues warnings for suspicious messages, attackers bypass these by initiating external voice calls, which generate no alerts. Once trust is established, they request screen sharing, enabling them to monitor victims’ activity and guide them toward malicious actions.

The highest risk arises where organisations enable external remote-control options, giving attackers potential full access to workstations directly through Teams. However, this eliminates the need for traditional remote tools like QuickAssist or AnyDesk, creating a severe security exposure.

Defenders are advised to monitor Microsoft 365 audit logs for markers such as ChatCreated, MessageSent, and UserAccepted events, as well as TeamsImpersonationDetected alerts. Restricting external communication and strengthening user awareness remain key to mitigating this threat.

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FBI says China’s Salt Typhoon breached millions of Americans’ data

China’s Salt Typhoon cyberspies have stolen data from millions of Americans through a years-long intrusion into telecommunications networks, according to senior FBI officials. The campaign represents one of the most significant espionage breaches uncovered in the United States.

The Beijing-backed operation began in 2019 and remained hidden until last year. Authorities say at least 80 countries were affected, far beyond the nine American telcos initially identified, with around 200 US organisations compromised.

Targets included Verizon, AT&T, and over 100 current and former administration officials. Officials say the intrusions enabled Chinese operatives to geolocate mobile users, monitor internet traffic, and sometimes record phone calls.

Three Chinese firms, Sichuan Juxinhe, Beijing Huanyu Tianqiong, and Sichuan Zhixin Ruijie, have been tied to Salt Typhoon. US officials say they support China’s security services and military.

The FBI warns that the scale of indiscriminate targeting falls outside traditional espionage norms. Officials stress the need for stronger cybersecurity measures as China, Russia, Iran, and North Korea continue to advance their cyber operations against critical infrastructure and private networks.

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Anthropic reports misuse of its AI tools in cyber incidents

AI company Anthropic has reported that its chatbot Claude was misused in cyber incidents, including attempts to carry out hacking operations and employment-related fraud.

The firm said its technology had been used to help write malicious code and assist threat actors in planning attacks. However, it also stated that it could disrupt the activity and notify authorities. Anthropic said it is continuing to improve its monitoring and detection systems.

In one case, the company reported that AI-supported attacks targeted at least 17 organisations, including government entities. The attackers allegedly relied on the tool to support decision-making, from choosing which data to target to drafting ransom demands.

Experts note that the rise of so-called agentic AI, which can operate with greater autonomy, has increased concerns about potential misuse.

Anthropic also identified attempts to use AI models to support fraudulent applications for remote jobs at major companies. The AI was reportedly used to create convincing profiles, generate applications, and assist in work-related tasks once jobs had been secured.

Analysts suggest that AI can strengthen such schemes, but most cyber incidents still involve long-established techniques like phishing and exploiting software vulnerabilities.

Cybersecurity specialists emphasise the importance of proactive defence as AI tools evolve. They caution that organisations should treat AI platforms as sensitive systems requiring strong safeguards to prevent their exploitation.

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Storm-0501 wipes Azure data after ransomware attack

A ransomware group has destroyed data and backups in a Microsoft Azure environment after exfiltrating sensitive information, which experts describe as a significant escalation in cloud-based attacks.

The threat actor, tracked as Storm-0501, gained complete control over a victim’s Azure domain by exploiting privileged accounts.

Microsoft researchers said the group used native Azure tools to copy data before systematically deleting resources to block recovery efforts.

After exfiltration, Storm-0501 used AzCopy to steal storage account contents and erase cloud assets. Immutable resources were encrypted instead.

The group later contacted the victim via Microsoft Teams using a compromised account to issue ransom demands.

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