Mastercard Updates Fraud System
Mastercard revamps its fraud detection system to accommodate bot transactions

As the world becomes increasingly digital, the way we make transactions is changing. Mastercard, a leading payment processing company, has spent decades training its fraud system to detect and prevent bot transactions, viewing them as potential thieves. However, with the rise of autonomous agents and bots making legitimate purchases, the company is now updating its system to enable these transactions. According to Greg Ulrich, Mastercard's chief AI and data officer, the company has built a set of risk rules over time to stop bots from transacting, but now needs to change its risk framework to enable them.
This shift is significant, as Mastercard's system processes over 175 billion transactions per year, with less than a tenth of a second to judge the likelihood of fraud. The company's update is a response to the changing landscape of digital transactions, where bots are becoming increasingly common. As Ulrich explained at the VB Transform 2026 conference, the company's goal is to enable bots to transact securely and efficiently.
The update is also a reflection of the growing importance of autonomous agents in digital transactions. As more companies begin to use bots to make purchases, the need for a secure and efficient system to process these transactions becomes increasingly important. Mastercard's update is a step in this direction, and is likely to have significant implications for the future of digital payments.
Shifting Security Landscape
The update to Mastercard's fraud system is also reflective of a broader shift in the security landscape. As AI security becomes increasingly important, companies are beginning to focus on governing identities and enabling autonomous agents to transact securely. According to Hush Security, a cybersecurity startup, the enterprise AI security conversation has fundamentally changed in less than a year.
Hush Security believes that the focus has shifted from protecting models to governing identities as autonomous agents spread. The company, which recently announced a $30 million Series A round, is working to tackle the issue of non-human identity security. As autonomous agents become more common, the need for a secure and efficient system to govern their identities becomes increasingly important.
The shift in focus is also reflected in the growing importance of synthetic users. Simile, a synthetic-user startup, recently raised $200 million at a $2 billion valuation, just five months after raising $100 million in its Series A round. The company's rapid growth is a reflection of the growing demand for synthetic users and the importance of governing their identities.
Verifying Open Models
The security of open models is also a growing concern. According to a recent report, the lineage behind 69% of open models was never verified. Cisco has recently fingerprinted almost 900 open models for free, in an effort to improve the security of these models.
The report, published by Nathan Lambert and Florian Brand at Interconnects AI, tracked roughly 1,500 mainline open models and identified derivatives through the Hugging Face base_model tag. The lack of verification of open models is a significant concern, as it can lead to security vulnerabilities and other issues.
Cisco's effort to fingerprint open models is an important step in improving the security of these models. By providing a free and open-source way to verify the lineage of open models, Cisco is helping to address a significant gap in the security landscape.
Fusion Power and Funding
Commonwealth Fusion Systems, a fusion power startup, recently raised $1 billion in funding. The company is working towards its first commercial fusion power plant, and the funding will help to support this effort.
The funding is a significant milestone for the company, and reflects the growing interest in fusion power as a potential source of clean energy. As the world continues to shift towards more sustainable and environmentally-friendly sources of energy, companies like Commonwealth Fusion Systems are likely to play an increasingly important role.
The bottom line
The updates to Mastercard's fraud system, the shift in the security landscape, and the growing importance of synthetic users and open models all reflect a broader trend towards a more digital and autonomous future. As companies continue to adapt to this changing landscape, the need for secure and efficient systems to process transactions and govern identities will become increasingly important.
- Mastercard's update to its fraud system reflects a shift towards enabling bot transactions and governing identities.
- The security landscape is changing, with a growing focus on governing identities and enabling autonomous agents to transact securely.
- Synthetic users and open models are becoming increasingly important, with companies like Simile and Cisco working to improve their security and efficiency.
- Fusion power startups like Commonwealth Fusion Systems are raising significant funding to support their efforts to develop commercial fusion power plants.
- The growing demand for digital and autonomous systems will continue to drive innovation and investment in the tech industry.
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π Full episode transcript
Mastercard's fraud system, which processed 175 billion transactions last year, is now facing a radical shift as bots are increasingly the ones doing the buying, forcing the company to retrain its decades-old algorithms to distinguish between legitimate and fraudulent purchases. Greg Ulrich, Mastercard's chief AI and data officer, recently explained that the company has built a bunch of risk rules over time that were intended to stop a bot from transacting, but now those same rules are inadvertently flagging legitimate bot purchases. This highlights the challenges that financial institutions face in adapting to the rapidly evolving landscape of AI-powered transactions, where the lines between human and bot interactions are becoming increasingly blurred.
As the role of bots in commerce continues to grow, companies like Mastercard will need to find ways to balance security with convenience, and that's where AI-driven solutions come in. Speaking of AI security, Hush Security, an Israeli cybersecurity startup, believes that the enterprise AI security conversation has fundamentally changed, with the focus shifting from protecting models to governing identities as autonomous agents spread. This shift in focus is critical, as the proliferation of AI-powered agents raises new concerns about accountability, transparency, and control.
Moving on to some exciting news in the startup world, synthetic-user startup Simile has just raised $200M at a $2B valuation, a staggering increase in value just five months after its $100M Series A. This rapid growth is a testament to the immense potential of AI-powered synthetic users, which can revolutionize industries such as customer service, marketing, and research. With this new funding, Simile is poised to further accelerate its development and deployment of synthetic users, potentially disrupting traditional industries and creating new opportunities.
In related news, a recent report highlighted the lack of verified lineage behind many open-source AI models, with a staggering 69% of models having unverified origins. However, Cisco has just taken a significant step towards addressing this issue by fingerprinting almost 900 models for free, providing a critical layer of transparency and security for developers and users. This move underscores the importance of accountability and trust in the AI ecosystem, particularly as open-source models become increasingly ubiquitous.
Finally, in a major development in the energy sector, Commonwealth Fusion Systems has raised another $1 billion as it moves towards its first commercial fusion power plant. This infusion of funding brings the startup one step closer to realizing its vision of making fusion power a reality, which could have far-reaching implications for the global energy landscape.
And that's all for today - tune in next time to hear about the latest developments in the startup and venture capital world, and find out how tech giant Google is planning to use AI to revolutionize its search engine.