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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →Cybercrime-as-a-Service (CaaS) is a criminal business model in which specialist providers sell, rent, or otherwise supply capabilities that other people use to commit cybercrime. Those capabilities can include malicious software, access to compromised systems, attack infrastructure, stolen data, or operational support. The model lets buyers outsource parts of an attack and can lower the technical expertise needed to take part.
How does cybercrime-as-a-service work?
A provider specializes in one part of the criminal toolkit and makes it available to other actors. The customer may use that capability directly or combine it with services from other providers. Europol’s 2014 Internet Organised Crime Threat Assessment described a market that can bring together participants in temporary or transactional relationships, rather than only in traditional, hierarchical criminal groups.
Services may be advertised or arranged through criminal marketplaces, forums, or chat platforms. The Canadian Centre for Cyber Security describes these venues as places to buy and sell tools and services and connect with other cybercriminals. Microsoft’s October 9, 2025 explainer describes both one-off services and continuing subscriptions. These are possible arrangements, not a single standard way CaaS transactions work.
Payment arrangements also vary. For example, the Canadian Centre for Cyber Security describes ransomware services that may involve an upfront fee, a subscription, a share of proceeds, or a combination. The provider and customer may divide the work differently: a provider might supply software or access, while a customer carries out an intrusion or chooses targets.
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Examples of cybercrime-as-a-service
CaaS is an umbrella term for services that support different stages or functions of cybercrime. The names below describe examples, not standardized products with identical terms across providers.
| Type | Capability supplied |
|---|---|
| Malware-as-a-Service | Malicious software made available to other actors. |
| Ransomware-as-a-Service (RaaS) | Ransomware and, in some arrangements, support for affiliates who deploy it. |
| Access-as-a-Service | Access credentials or entry to compromised systems. |
| Phishing-as-a-Service | Tools or services that support phishing campaigns. |
| DDoS-as-a-Service | Capacity or services used to conduct distributed denial-of-service attacks. |
| Exploits-as-a-Service | Exploits made available for use by other actors. |
Other examples described by Europol and the FBI include criminal hosting infrastructure, bulletproof hosting, rented ransomware, tools called “crypters” that conceal malware from antivirus tools, password-cracking services, and mixers or tumblers used to obscure illicit virtual-currency payments. Their inclusion illustrates the range of capabilities associated with the model; it does not mean every CaaS provider offers the same bundle.
How is CaaS different from RaaS?
CaaS is the broader model; RaaS is one example within it. CaaS can cover the sale or rental of malware, access, infrastructure, data, or other criminal support. RaaS specifically concerns ransomware services. In some RaaS arrangements, a core group supplies ransomware and supports affiliates who deploy it. The terms are related, but they are not interchangeable.
What does a real case show?
EMOTET illustrates how a service can enable additional crimes. Eurojust reported that the malware infrastructure was offered for hire to install further malware. Access obtained through it could then be sold to other groups for activities including botnet operation, data theft, or ransomware extortion.
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In January 2021, authorities in an internationally coordinated action took control of and disrupted the EMOTET infrastructure. The case shows how investigators can target an enabling service or its infrastructure, rather than focusing only on the actors responsible for later offenses. It is a dated example, not evidence that the same infrastructure remains active.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What CaaS does—and does not—tell you
CaaS helps explain how cybercrime can be divided among specialists: a buyer does not necessarily need to build every tool or capability themselves. Less technically skilled actors may use ready-made services, while more established groups may outsource specialist work or extend their capacity. The model describes how capabilities are supplied; it does not, by itself, identify who is behind an attack or how successful it will be.
Authorities and cybersecurity sources use both “Cybercrime-as-a-Service” and “Crime-as-a-Service,” and the boundaries of these categories vary. There is no single taxonomy that makes every offering fit neatly into one type.
Nor should unrelated cybercrime figures be treated as measurements of the CaaS market. The Canadian Centre for Cyber Security reports Canadian fraud losses of CAD 383 million in 2021, CAD 530 million in 2022, and CAD 567 million in 2023 in its 2025–2026 assessment; those figures are fraud losses in Canada, not estimates of CaaS size or losses attributable to CaaS. The reviewed sources do not provide one overall statistic for CaaS prevalence or market size.
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