19 October, 2025
cybersecurity-threats-surge-as-stolen-credentials-target-australia-1

Australians’ stolen usernames and passwords are increasingly being used by cybercriminals to infiltrate workplaces, with two in five critical security incidents now affecting large companies, governments, and academic institutions due to compromised accounts or credentials. This alarming trend is highlighted in the latest annual threat report from the Australian Signals Directorate (ASD), a key government intelligence agency.

The report reveals that China-linked cyber actors are exploiting Australians’ vulnerable home internet connections and smart devices to create expansive networks that obscure their identities during global cyberattacks. The ASD received a cybercrime report every six minutes last year, as cybercriminals leveraged new technologies to escalate their attacks.

Artificial Intelligence and Cybercrime

The prevalence of artificial intelligence (AI) is facilitating larger and faster cyberattacks, according to the ASD report. It states,

“The prevalence of artificial intelligence almost certainly enables malicious cyber actors to execute attacks on a larger scale and at a faster rate.”

The report warns that as Australia increasingly adopts internet-connected technology, the opportunities for cybercriminals to exploit these systems grow.

ASD Director-General Abigail Bradshaw reported an 11% increase in cybersecurity incidents, with 1,200 incidents responded to in the latest financial year. Critical infrastructure entities were notified of potential malicious activity impacting their networks 190 times, more than double the previous year.

Credential Theft and Its Consequences

Credential theft remains a significant threat, with cybercriminals purchasing stolen usernames and passwords from the dark web to access personal email, social media, or financial accounts. This can lead to financial losses, privacy breaches, and heightened risk of identity theft. The average financial loss for individuals victimized by cybercrime last year was $33,000.

However, the threat extends beyond personal accounts. Cybercriminals are using stolen credentials to access corporate systems, seeking to gain initial access to the devices of employees, clients, and other systems. Once inside, they mimic legitimate user behavior to steal sensitive information, install ransomware or malware, and take over accounts.

The report highlights that

“Compromised accounts or credentials accounted for 42% of incidents impacting large organizations, government, academia, or supply chains.”

Businesses affected by cybercrime lost an average of $80,850, with large businesses suffering $202,700 per incident, marking an increase of over 200% since last year.

State-Sponsored Cyber Threats

Cybersecurity threats are not limited to independent criminals; state-sponsored actors also pose a growing risk. The ASD focuses on top-tier financially motivated criminals, often from Eastern European and Russian-speaking cyber gangs. State-sponsored hackers target Australian government networks, critical infrastructure, and businesses for strategic objectives.

The report notes,

“State-sponsored cyber actors may also seek to use cyber operations to degrade and disrupt Australia’s critical services and undermine our ability to communicate at a time of strategic advantage.”

One such group, APT40, linked to China, has been targeting home internet devices to build networks for launching further attacks. These devices, including routers and VPN products, are attractive due to common vulnerabilities that are difficult to secure.

Future Implications and Response

The ASD and other agencies have found that state cyber actors linked to China have compromised thousands of internet-connected devices, including home office routers and smart appliances. This allows them to blend malicious traffic with legitimate activity, complicating detection and prevention efforts.

As cyber threats continue to evolve, the need for robust cybersecurity measures becomes more critical. Organizations and individuals alike must prioritize securing their digital environments to mitigate the risks posed by both independent and state-sponsored cybercriminals. The ASD’s ongoing efforts to monitor and respond to these threats are crucial in safeguarding Australia’s digital infrastructure.

Looking ahead, the integration of AI in cybersecurity solutions may offer new avenues for detecting and countering cyber threats. However, as technology advances, so too do the tactics of cybercriminals, necessitating a continuous adaptation of defense strategies.