Third-party attacks, also known as supply chain attacks, are one of the fastest growing threats in cybersecurity. In recent years, more and more businesses have been confronted with breaches that do not originate from their own systems, but from partners, suppliers or external service providers. This phenomenon is not accidental, but a result of the increasing complexity of digital ecosystems.
What are supply chain attacks?
A supply chain attack exploits the trust that exists between an organization and its partners. Instead of directly targeting a well-protected company, attackers infiltrate a weaker point in the chain, such as a software provider, an outsourcing company, or even a support partner. Through this access, they can move laterally and reach their ultimate target.
See also: NIST updates DNS security guidance after 12 years
This attack model is considered particularly effective, as it exploits the very structure of modern business operations, where companies rely on dozens or even hundreds of external partners.
Why are they growing so fast?
The rapid increase in supply chain attacks is directly linked to the digital transformation of businesses. The transition to cloud services, the use of SaaS applications and the dependence on external providers have created a wide network of interdependencies. Each new partner is also a potential entry point for an attacker.
At the same time, many smaller companies that operate as suppliers do not have the same level of security as large organizations, making them ideal targets for hackers looking for the easiest path to a larger “victim.”
The value of indirect access
For cybercriminals, access through third-party partners offers significant advantages. First, it reduces the need to directly compromise a heavily protected system. Second, it allows them to remain on the network for a longer period of time without detection, as the activity appears to come from a “trusted” partner.
Furthermore, such attacks can have a multiplier effect. A single compromised provider can give access to dozens or hundreds of customers, dramatically increasing the scale of the attack.
Examples and real-world impacts
In recent years, numerous incidents have been recorded that have highlighted the seriousness of supply chain attacks. From software update breaches to attacks via outsourcing companies, the impacts include data leaks, financial losses and serious damage to organizations' reputations.
See also: Android vs iOS: Which operating system is more secure?
In many cases, companies realize a breach too late, when data has already been stolen or malicious backdoors have been installed. This makes prevention and early detection critical.
The weaknesses in the collaboration model
A key problem is that businesses often lack full visibility into the security of their partners. Contracts are focused primarily on operational issues rather than cybersecurity requirements. Furthermore, the access given to third parties can be excessive, without strict controls or restrictions.
The lack of continuous evaluation and monitoring of partners creates a dangerous gap, which attackers exploit.
How can organizations protect themselves?
Countering supply chain attacks requires a multi-layered strategy. Organizations must implement strict access controls, adopting models such as Zero Trust, where no user or system is automatically considered trustworthy.
🔒 Protect your privacy with Proton VPN
Swiss VPN from the creators of Proton Mail — strict no-logs policy, strong encryption, and built-in NetShield that blocks ads, trackers, & malware.
- ✔ No-logs, based in Switzerland (except 14-Eyes)
- ✔ NetShield: blocks ads, trackers & malicious domains
- ✔ Covers all devices — free version available
The link is an affiliate link — SecNews may receive a commission at no additional cost to you. It does not affect the independence of our article writing.
At the same time, it is essential to assess the security of partners before and during the collaboration. The use of monitoring tools, the implementation of multi-factor authentication (MFA) and continuous training of staff are key defense measures.
See also: Cybersecurity: New standards for New York City's water systems
The future of supply chain attacks
As businesses continue to expand their digital ecosystems, supply chain attacks are expected to become even more frequent and sophisticated. Attackers are investing in automation and techniques that allow them to identify weak points more quickly.
Cybersecurity can no longer be confined within the boundaries of a single company. Instead, a holistic approach is required that encompasses the entire supply chain. In a world where everything is interconnected, security is only as strong as its weakest link.
