| March 2021 | RingCentral acquired KinditeDevelops cryptographic technologies reducing security and privacy risks in the cloud | Encryption, Encryption and key management | Undisclosed | Report on RingCentral buying Kindite, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Relay Medical Corp acquired Cybeats TechnologiesIoT cybersecurity firm helping make connected devices more secure | IoT security, IoT, embedded and product security | $7.2m | Report on Relay Medical Corp buying Cybeats Technologies, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Recorded Future acquired Gemini AdvisoryA fraud analytics startup for finance and payment firms | Fraud prevention, Fraud and payment fraud prevention | $52m | Report on Recorded Future buying Gemini Advisory, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | QOMPLX acquired SentarDelivers cyber intelligence, analytics and operations for national safety | Threat intel, Threat intelligence | Undisclosed | Report on QOMPLX buying Sentar, March 2021 (opens in a new tab) |
| March 2021 | QOMPLX acquired Hyperion GrayCyber intelligence firm with cybersecurity and OSINT expertise | OSINT, OSINT tools | Undisclosed | Report on QOMPLX buying Hyperion Gray, March 2021 (opens in a new tab) |
| March 2021 | Plurilock Security acquired Aurora Systems ConsultingSells cyber security goods and work to firms and state bodies | MSSP, Managed security services | Undisclosed | Report on Plurilock Security buying Aurora Systems Consulting, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Pindrop acquired Next CallerProvides call verification and fraud detection for enterprises | Fraud prevention, Fraud and payment fraud prevention | Undisclosed | Report on Pindrop buying Next Caller, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Okta acquired Auth0Auth0 provides authentication and authorization services for applications and AI agents. | CIAM, Customer identity | $6.5bn | Report on Okta buying Auth0, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Netwrix acquired ANIXISSoftware helping administrators manage and enforce password policies | Password managers | Undisclosed | Report on Netwrix buying ANIXIS, March 2021 (opens in a new tab)via Wikipedia (opens in a new tab) |
| March 2021 | Meriplex acquired HBR TechnologiesManaged services provider offering managed cybersecurity and IT | MSSP, Managed security services | Undisclosed | Report on Meriplex buying HBR Technologies, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Lookout acquired CipherCloudSpecialises in Secure Access Service Edge | SASE, SASE and SSE | Undisclosed | Report on Lookout buying CipherCloud, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Kroll acquired RedscanCybersecurity company with a security operations centre and extended detection and response | EDR, EDR and XDR | Undisclosed | Report on Kroll buying Redscan, March 2021 (opens in a new tab) |
| March 2021 | KnowBe4 acquired MediaPROTeaches staff how to keep information safe and private | Awareness training, Security awareness and human risk | Undisclosed | Report on KnowBe4 buying MediaPRO, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Kape acquired Webselenese | | $150m | Report on Kape buying Webselenese, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Jamf acquired cmdSecurityMakes software that keeps Apple computers safe and meets rules | EPP, Endpoint protection and antivirus | Undisclosed | Report on Jamf buying cmdSecurity, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | IronNet Cybersecurity acquired LGL Systems AcquisitionCollective defence and network detection and response provider | NDR, Network detection and response | Undisclosed | Report on IronNet Cybersecurity buying LGL Systems Acquisition, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | IDnow acquired identity Trust ManagementSupplies ways to prove who people are, both online and in person | IGA, Identity governance and administration | Undisclosed | Report on IDnow buying identity Trust Management, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Hornetsecurity acquired ZerospamGuards email for smaller companies using cloud based tools | Email security | Undisclosed | Report on Hornetsecurity buying Zerospam, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Fortinet acquired ShieldXSpecialises in cloud and network security | CNAPP, Cloud security (CNAPP and CSPM) | Undisclosed | Report on Fortinet buying ShieldX, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Datto acquired BitDamProvides threat detection and protection for email and collaboration tools | Email security | Undisclosed | Report on Datto buying BitDam, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Criterion Systems acquired Realm ConsultingContractor for intelligence sector specialising in software, cybersecurity and network engineering | Consulting, Security consulting and vCISO | Undisclosed | Report on Criterion Systems buying Realm Consulting, March 2021 (opens in a new tab) |
| March 2021 | Copado acquired New ContextServes big firms and public bodies with secure cloud development and operations | Consulting, Security consulting and vCISO | Undisclosed | Report on Copado buying New Context, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Claranet acquired ID Group | | Undisclosed | Report on Claranet buying ID Group, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | CFC acquired Insane TechnologiesProvides cybersecurity and incident response services | IR, Incident response | Undisclosed | Report on CFC buying Insane Technologies, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Bluff Point Associates acquired True North NetworksProvides managed security services | MSSP, Managed security services | Undisclosed | Report on Bluff Point Associates buying True North Networks, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Atlantic-Pacific Processing Systems acquired Conformance TechnologiesAssesses and monitors risk and compliance for small businesses | GRC, GRC and compliance automation | Undisclosed | Report on Atlantic-Pacific Processing Systems buying Conformance Technologies, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Alacrinet Consulting Services acquired Chamber’s KeyCarries out security research | Consulting, Security consulting and vCISO | Undisclosed | Report on Alacrinet Consulting Services buying Chamber’s Key, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Acronis acquired SynapsysProvides African IT channel with access to cyber protection solutions | | Undisclosed | Report on Acronis buying Synapsys, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | WISeKey acquired arago | | Undisclosed | Report on WISeKey buying arago, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Westcoast acquired Beyond EncryptionProvides email and communication security products | Email security | Undisclosed | Report on Westcoast buying Beyond Encryption, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | The Carlyle Group acquired Two Six LabsSupplies data analysis and digital defence work to American state agencies | MSSP, Managed security services | Undisclosed | Report on The Carlyle Group buying Two Six Labs, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | The Carlyle Group acquired IST Research | | Undisclosed | Report on The Carlyle Group buying IST Research, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Tenable acquired AlsidSpecialises in Active Directory security | ITDR, Identity threat detection and response | $98m | Report on Tenable buying Alsid, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Stone and Chalk acquired AustCyberAustralian cyber security growth network supporting technology company founders | Consulting, Security consulting and vCISO | Undisclosed | Report on Stone and Chalk buying AustCyber, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Sontiq acquired CyberscoutProvides cyber products and services tailored for the insurance industry | Fraud prevention, Fraud and payment fraud prevention | Undisclosed | Report on Sontiq buying Cyberscout, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Serco acquired Whitney, Bradley & Brown (WBB) | | $300m | Report on Serco buying Whitney, Bradley & Brown (WBB), February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | SentinelOne acquired ScalyrLog management startup for ingesting and correlating data | Data pipelines, Security data pipelines | $155m | Report on SentinelOne buying Scalyr, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | SailPoint acquired IntelloLets firms find, run and protect their online software tools | SSPM, SaaS security | Undisclosed | Report on SailPoint buying Intello, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Proofpoint acquired InteliSecureData loss protection firm | DLP, Data loss prevention | $62.5m | Report on Proofpoint buying InteliSecure, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Palo Alto Networks acquired BridgecrewIt offers a cloud protection service built from written rules | CNAPP, Cloud security (CNAPP and CSPM) | $156m | Report on Palo Alto Networks buying Bridgecrew, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Landis+Gyr acquired RheboThe firm works on keeping factories safe and their machinery running | OT security, OT and ICS security | Undisclosed | Report on Landis+Gyr buying Rhebo, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Kaseya acquired RocketCyberProvides a managed security operations centre platform | MDR, Managed detection and response | Undisclosed | Report on Kaseya buying RocketCyber, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | IntelliGenesis acquired CybatiWorksProvides cyber-physical training and emulation for critical infrastructure and ICS | | Undisclosed | Report on IntelliGenesis buying CybatiWorks, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | IntelliBridge acquired Alethix | | Undisclosed | Report on IntelliBridge buying Alethix, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | HelpSystems acquired Digital DefenseIt offers ways to judge dangers and handle weak points in systems | Vulnerability management | Undisclosed | Report on HelpSystems buying Digital Defense, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Guardforce AI acquired Handshake NetworkingA firm in Hong Kong that tests systems by trying to break in | Pen testing, Penetration testing | Undisclosed | Report on Guardforce AI buying Handshake Networking, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Green Cloud Technologies acquired Cascade DefenseA firm that runs the whole of a client's security for them | MSSP, Managed security services | Undisclosed | Report on Green Cloud Technologies buying Cascade Defense, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Flashtalking acquired Protected MediaThe company works on stopping and spotting fake advert clicks | Fraud prevention, Fraud and payment fraud prevention | Undisclosed | Report on Flashtalking buying Protected Media, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Datadog acquired SqreenProtects enterprises against application level attacks | SSPM, SaaS security | Undisclosed | Report on Datadog buying Sqreen, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2021 | Data443 Risk Mitigation acquired ArcMailProvides a platform for archiving data | Backup, Backup and cyber recovery | Undisclosed | Report on Data443 Risk Mitigation buying ArcMail, February 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |