security startups

A startup that originally positioned itself as an AI-for-climate company secured backing from Nvidia, according to the Wall Street Journal, but only after shelving the climate focus of its business. The report highlights how some AI companies are adjusting their missions to attract investment, raising questions about whether climate commitments survive contact with venture funding pressures.

Frontier, the carbon removal buyer consortium backed by major tech companies, has secured a deal with a startup that stores carbon dioxide permanently in rock formations, according to an exclusive report. The agreement marks another step in scaling mineralization-based carbon removal, a technology that locks CO2 underground by reacting it with certain rocks.

Canadian AI company Cohere is moving to acquire AISLE, a startup working on AI-powered cybersecurity. The deal was reported by Reuters and picked up by other outlets, underscoring the growing race among AI developers to strengthen security capabilities around their models as enterprise adoption expands. Details on price and timing have not been made public.

Cybersecurity startups raised $6.8 billion in the third quarter of 2026, roughly 50 percent more than the previous quarter, according to Crunchbase News. The jump points to renewed investor appetite for security and defense-focused ventures, with large venture rounds and AI-driven security companies drawing a growing share of funding.

Canadian AI firm Cohere is moving to acquire AISLE, a startup working on AI cybersecurity, according to a Reuters report. The deal would add security-focused capabilities to Cohere's enterprise AI business as competition among AI companies for specialized technology intensifies.

Canadian AI company Cohere has moved to acquire AISLE, a cybersecurity firm, according to PYMNTS. The deal signals Cohere's push to expand beyond enterprise language models into security offerings, a growing area of demand as companies adopt AI. Details on the price and timeline of the acquisition have not been reported, and reaction from the wider industry remains limited so far.

Startup Ambrosia Energy says it will build a 10 GWh battery factory in Texas to produce batteries that pair with solar panels, creating round-the-clock clean power for off-grid data centers. The plan reflects growing demand for self-sufficient energy supplies as data center power needs surge and grid connections become harder to secure.

Canadian AI firm Cohere has signed a deal to acquire AISLE, a startup specializing in AI cybersecurity. The move signals Cohere's intent to expand beyond large language models into security offerings for enterprise AI systems. Details on the deal's value and timeline have not been disclosed.

Offensive security startup CodeWall has launched with $4 million in funding to develop AI agents that attack enterprise systems to find vulnerabilities before criminals can exploit them. The company is part of a growing wave of startups using artificial intelligence for automated penetration testing and red-teaming, as enterprises face increasingly sophisticated and fast-moving cyber threats.

Sedaro, a US space technology company, has appointed retired US Space Force Lieutenant General Bill Liquori as an advisor. The move adds senior military space expertise to the company's leadership as it works with government and commercial customers, and signals closer ties between the startup and the national security space community.

Salience Labs has secured $125 million in funding to develop photonic networking chips, which use light rather than electrical signals to move data. The Oxford-born startup is part of a wave of companies betting that optical interconnects will ease the bandwidth and power bottlenecks facing AI data centers, and the round ranks among the larger raises in the sector this year.

AI company Cohere has signed a letter of intent to acquire AISLE, a startup specializing in AI-powered cybersecurity. The deal, currently at the letter of intent stage, signals Cohere's interest in expanding into security products as enterprises seek protection for AI systems. Details on price and timeline have not been disclosed, and further announcements are expected once due diligence concludes.

Consus, a startup from Y Combinator's Fall 2024 batch, has launched an LLM gateway aimed at companies that handle sensitive data. The tool lets businesses route AI model requests while keeping control over confidential information, addressing privacy and compliance concerns that often block enterprise AI adoption. Hacker News users are discussing the launch and its approach to data security.

Reflect Orbital has secured bookings for two launches of its satellites designed to reflect sunlight back to Earth at night, effectively providing solar lighting from orbit. The California-based startup aims to sell sunlight-on-demand to solar farms after dark, a concept that has drawn both interest from the energy industry and criticism from astronomers concerned about light pollution and its effects on wildlife and night skies.

Skild AI has deployed its four-legged robots to patrol Pittsburgh airport, marking a visible step for the robotics startup's security-focused autonomous machines. The rollout puts its quadruped technology to work in a public, high-traffic setting and is drawing attention as a real-world test of AI-powered patrolling.

Startup Licube says fusion power plants will need large amounts of lithium, and it is preparing to become a key supplier to the emerging fusion industry. The company is presenting its plans at TechCrunch Disrupt, arguing that as fusion moves toward commercialization, securing fuel supply chains like lithium will become a critical part of the market.

AI company Anthropic has acquired Opaque Systems, a startup specializing in confidential computing that allows data to be processed without exposing it. The deal, reported by SecurityWeek, signals Anthropic's push into privacy-preserving AI infrastructure, a growing concern for enterprise customers handling sensitive data. Details on the purchase price and integration plans have not been disclosed.

A new analysis points to AI-powered explosive threat detection as the next billion-dollar opportunity in defense technology. The report argues that automated detection of bombs and hazardous devices is attracting growing investment interest from defense contractors and startups, as militaries and security agencies seek faster, more accurate screening tools.

A new analysis in Intereconomics examines why European startups struggle to secure late-stage funding, identifying six constraints limiting the supply of venture capital in Europe. The piece argues that fragmented capital markets, limited institutional investment and regulatory hurdles keep promising scale-ups dependent on US or Asian investors, and lays out a reform agenda for EU policymakers to deepen European venture funding.

The United States has imposed sanctions on a Chinese artificial intelligence startup founded by a former Google employee, according to a Wall Street Journal report. The move adds the company to the growing list of Chinese tech firms targeted by Washington over national security and technology competition concerns. Details about the specific measures and the company's response have not yet been widely reported.

Terra Industries, a Nigerian defence technology startup, raised an additional $22 million in a seed extension round in February 2026, bringing its total funding to $34 million. The company is developing defence technology in Nigeria, and the raise signals growing investor interest in African security and defence startups, with backing reportedly including foreign money.

A Las Vegas startup is applying artificial intelligence to casino surveillance, the traditional 'eye in the sky' that monitors gaming floors. The technology aims to automate detection of suspicious behavior, cheating and other security concerns that human observers currently track from above. It is being reported as a notable development in the growing use of AI within the gambling industry.

Ethereum co-founder Vitalik Buterin has warned that artificial intelligence could break lattice-based cryptography within roughly two years, a stark timeline for the encryption methods widely considered central to post-quantum security. The claim is drawing attention across the tech and startup world because lattice cryptography underpins efforts to protect data against future computing threats, and such a short window would pressure governments and companies to accelerate migration plans.

Companies deploying AI agents often struggle to move successful pilots into reliable production systems. Guidance is circulating on structuring this handoff, covering how to set evaluation criteria, define ownership between teams, plan for monitoring and maintenance, and secure executive buy-in before scaling. The advice reflects a broader concern among startups and enterprises alike that many AI agent projects stall after the pilot stage rather than delivering lasting operational value.

Elon Musk and Palmer Luckey are being drawn into debate over the Pentagon's growing reliance on private tech billionaires for military capability. Reporting on how American billionaires are shaping the future of warfare highlights Musk's influence through SpaceX and Starlink and Luckey's defence startup Anduril, raising questions about outsourcing national security decisions to a handful of wealthy innovators.