All themes
Cybersecurity
74 managers wrote about this in 127 letters. Every passage below is copied verbatim from the letter it came from.
Share of letters mentioning it
- 2024 Q47% of 30
- 2025 Q18% of 40
- 2025 Q25% of 88
- 2025 Q38% of 88
- 2025 Q43% of 129
- 2026 Q14% of 137
- 2026 Q26% of 709
- 2026 Q36% of 863
- 2026 Q44% of 73
IT consultancy Northsand (TSE:446A) rose 18% after larger peer BayCurrent reported revenue growth above 40%, driven by AI and cybersecurity work.
Read the letter →- Bailador Technology InvestmentsOct 2026
Blackpeak Capital's Market Update, October 2026, from which the graph below is taken, shows that the Infrastructure, DevOps and Cyber security sub-sectors account for almost all of the growth in the NASDAQ index in the twelve months to 30 September 2026.
Read the letter → - Avity Investment Management PerspectiveOct 2026
Software stocks, including cyber security vendors, staged a recovery after being out of favor for much of the past year due to AI threats, while semiconductors digested their sizable gains from the first half of 2026.
Read the letter → Cancer diagnostics company Natera (NTRA) was the largest contributor to relative returns, followed by cybersecurity company Rubrik (RBRK) and precision oncology provider Guardant Health (GH).
Read the letter →- Tesys Value FISep 2026
The development of artificial intelligence and the expansion of data centers are increasing infrastructure and cybersecurity needs, which favors demand for Fortinet's solutions.
Read the letter → - Argent Mid Cap StrategySep 2026
We continue to view Fortinet as a high-quality cybersecurity franchise with strong competitive positioning and solid execution, but it was appropriate to reduce the position.
Read the letter → Fortinet remains a high quality cybersecurity franchise with strong competitive positioning and solid execution.
Read the letter →Palo Alto Networks Inc (PANW), a leading cybersecurity platform company, was also a strong contributor during the quarter.
Read the letter →- Pender Bond Universe FundSep 2026
The company’s Zero Trust Exchange is a cybersecurity platform that can be thought of as an alternative to a firewall and instead of being a candidate for AI disruption, we believe AI and the likely increase in cybersecurity threats that result, will provide a tailwind for this business going forward.
Read the letter → - Baron Global Opportunity FundSep 2026
A broader cybersecurity recovery added a tailwind, as new AI-enabled threats heightened urgency among security buyers and partners reported broad- based acceleration across Cloudflare's portfolio.
Read the letter → Infrastructure software joined cybersecurity as an area increasingly seen as a beneficiary of AI rather than a potential casualty of disruption.
Read the letter →Weight: 8% · Total Effect: +185 bps PANW provides cybersecurity platform solutions.
Read the letter →We also thought the market was underestimating Baycurrent’s recruitment of experienced consultants in areas such as cybersecurity and defence.
Read the letter →BUFFALO MID CAP GROWTH FUND September 30, 2026 OUTLOOK Regarding the omnipresent Artificial Intelligence investment theme, focus this quarter was on cybersecurity as the now-infamous Hugging Face incident sent shockwaves through technologists, politicians, and investors.
Read the letter →Consumer uptake has been extraordinarily rapid, while businesses are increasingly incorporating AI into software development, cybersecurity, customer service, research, advertising, productivity, and a growing number of other workflows.
Read the letter →- Baron Fifth Avenue Growth FundSep 2026
For bottom-up fundamental investors who operate as long-term owners of businesses this has created real and substantive opportunities: buying systems software and cybersecurity companies in late 2025 and early 2026, buying AI stocks during the early-2025 DeepSeek scare, or holding Meta when the prevailing narrative declared it dead.
Read the letter → - Baron Discovery FundSep 2026
Another company we’d like to highlight, though not among the top five contributors, is Rubrik, Inc., a cybersecurity and data resilience platform.
Read the letter → In software, it distinguishes between business models, favoring cybersecurity and infrastructure software over application software, where seat-based models may face AI-driven disruption.
Read the letter →We continue to view the company as the platform of record for AI-era cybersecurity.
Read the letter →Contributors and Detractors Top contributors to performance for the quarter included US cybersecurity software leader CrowdStrike, Indian digital payments company One 97 Communications (Paytm), US data center software provider Snowflake, Indian food delivery and quick-commerce company Eternal, and US-based fintech platform and stablecoin issuer Circle Internet Group.
Read the letter →Technology holdings benefited from select software and cybersecurity exposure, while Health Care benefited from diversified medical technology and therapeutic businesses.
Read the letter →Boston Scientific was eliminated following a decline in fundamentals and a cybersecurity incident that impacted its ability to process and ship customer orders.
Read the letter →- Fiduciary Management FundsSep 2026
Banking software is heavily regulated, cybersecurity is paramount, and local banks are in the business of serving their local community, not building technology.
Read the letter → While underlying demand remained healthy, the recovery from a cyberattack earlier in the year has taken longer than management initially anticipated, and additional supply disruptions in the Peripheral Vascular business have further pressured results.
Read the letter →AI has shifted from a perceived disruption risk to a cybersecurity tailwind, increasing the importance of QLYS’ integrated platform, durable position, and strong cash generation.
Read the letter →- Alger Mid Cap Focus FundSep 2026
We believe Cloudflare’s extensive network and expanding product portfolio position it to benefit from rising internet traffic, growing cybersecurity needs, and enterprise adoption of AI.
Read the letter → CrowdStrike is a provider of cloud - native cybersecurity software, with its Falcon platform protecting endpoints, cloud workloads, identity, and data.
Read the letter →- Homestead Advisers Value FundSep 2026
Actual outcomes may differ materially from expectations due to technological, competitive, regulatory, legal, cybersecurity, or other factors.
Read the letter → Climb Global Solutions, Inc. (CLMB) CLMB distributes emerging technology and cybersecurity products through a global network of resellers and technology partners.
Read the letter →At the same time, regulatory requirements are due to add S$15–30m of cyber security-related spend in the 2027 financial year.
Read the letter →We see the company recovering strongly from the cyber security outage in 2025.
Read the letter →CrowdStrike i s a provider of cloud - native cybersecurity software, with its Falcon platform protecting endpoints, cloud workloads, identity, and data.
Read the letter →- Desert Lion Capital Fund I, LPSep 2026
It covers most of what a large organization needs: rolling out and tailoring business software such as SAP, Oracle, SYSPRO and Acumatica; running data centers, networks and IT infrastructure as an ongoing managed service; cloud, data, automation and AI work; cybersecurity and fraud prevention; custom software development and testing; payroll and HR systems; and legal, risk and forensic advisory.
Read the letter → In addition, private equity firm KKR announced its intention to acquire Integer at $127 per share, representing an enterprise value of $5.8 billion and an implied next twelve months price-to-earnings multiple of 18.9x. Qualys, a cybersecurity software company, benefited from a broad recovery in software stocks as momentum in the artificial intelligence trade moderated during the quarter.
Read the letter →- AVI Japanese Special SituationsSep 2026
Its key businesses include online high schools, cybersecurity and content delivery services, digital transformation support, studio and production services, and other digital media-related activities.
Read the letter → - Homestead AdvisersSep 2026
Expectations regarding the growth, adoption, and commercial impact of AI may not be realized and could be affected by various factors, including technological advancements, competitive pressures, legal and regulatory developments, cybersecurity risks, and market conditions.
Read the letter → - DNCA Invest SRI Euro QualitySep 2026
Cybersecurity activity growth also recovered to 4.5% in the second 7 Extreme Ultraviolet.
Read the letter → The company is also expanding into cybersecurity through acquisitions and broader adoption of its security operations (SecOps) platform.
Read the letter →The fund shifted into companies that should benefit from the data management and cybersecurity needs that are being created by the rise of agentic AI at both the enterprise and consumer level.
Read the letter →Second-quarter revenue grew 16%, but net income fell to only $1.1 million because of merger costs, heavier AI spending, and interest on new debt while a March cyberattack created a further headache.
Read the letter →
Showing the 40 most recent of 127 letters.