Lastline
AcquiredRedwood City, US · Founded 2011 · Delaware corporation · 7 known investors
American network security company offering malware sandboxing and AI-based network detection and response; acquired by VMware in 2020.
Also known as Lastline, Inc.
Founders & leadership
Lastline was founded in 2011 by Giovanni Vigna, Engin Kirda, and Christopher Kruegel.
Board

Investors · 7
Also in the syndicate · 1
Reported raises · per SEC filings
Form D private placements$38.5M disclosed across 2 of 6 rounds · 2013–2017
▶$28.5MraisedAug 2017 · 13 investors · Other TechnologyRule 506(b)
- Giovanni VignaExecutive Officer, Director
- John WaleckaDirector
- Kirk DunnDirector
- Engin KirdaExecutive Officer
- Barmak MeftahDirector
- Christopher KruegelExecutive Officer, Director
- Andreas Von BlottnitzDirector
- Umesh PadvalDirector
- Offering amount
- $28.5M
- Amount sold
- $28.5M
- First sale
- Jun 2017
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$348.8KofferedOct 2015 · 1 investors · Other TechnologyRule 506(b)
- Giovanni VignaExecutive Officer, Director
- John WaleckaDirector
- Kirk DunnDirector
- Andreas Von BlottnitzDirector
- Jens AndreassenExecutive Officer, Director
- Engin KirdaExecutive Officer
- Christopher KruegelExecutive Officer
- Offering amount
- $348.8K
- First sale
- Oct 2015
- Incorporated
- Corporation, Delaware, 2011
- Federal exemptions
- 06b
▶$10MraisedAug 2014 · 9 investors · Other TechnologyRule 506(b)
- Giovanni VignaExecutive Officer, Director
- Jens AndreassenExecutive Officer, Director
- Christopher KruegelExecutive Officer
- John WaleckaDirector
- Andreas Von BlottnitzDirector
- Offering amount
- $10.1M
- Amount sold
- $10M
- First sale
- Jul 2014
- Incorporated
- Corporation, Delaware, 2011
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Lastline, Inc. was an American cyber security company headquartered in Redwood City, California, providing network-based breach detection and related security services. Its products targeted malware used by advanced persistent threat (APT) groups, serving businesses, government organizations and other security service providers. The company also offered email security, malware analysis, intrusion detection and network traffic analysis, and positioned its platform as cloud-native, covering on-premises networks, cloud, multi-cloud and hybrid deployments.
The company's core product was a malware sandbox built on full-system emulation, which inspects every instruction a sample executes rather than only observing operating-system interactions. This approach was used to detect derivatives of known malware families as well as evasive, unknown malware. Alongside the sandbox, Lastline applied machine learning to network data to flag attack behaviors such as East-West lateral movement, command-and-control communication and data exfiltration, rather than relying on generic anomaly detection. In 2018 the company entered the network traffic analytics segment with the Lastline Network Defender product.
Lastline also operated a research arm, Lastline Labs. Between May 2013 and May 2014, Lastline researchers tested hundreds of thousands of malware samples against 47 antivirus vendors' signatures via VirusTotal, reporting that on any given day at least half of the scanners tested failed to detect new malware, and that after two months a third still did not detect it.
Founding story
Lastline was founded in 2011 by computer science researchers Engin Kirda, Christopher Kruegel and Giovanni Vigna, from the University of California, Santa Barbara and Northeastern University.
Business model
Lastline sold network and email security products to enterprises, government organizations and security service providers. Its technology was also embedded into third-party security vendors' products through OEM and integration partnerships (for example WatchGuard, Juniper Networks and Carbon Black).
Sales of network and email security products to enterprises, plus licensing/integration of its detection technology into partner security products; specific pricing terms are not disclosed in the sources.
Traction
At the time of the VMware acquisition, Lastline detonated more than 5 million file samples daily and its technology protected more than 20 million users across thousands of organizations, including five of the ten largest financial institutions.
Latest developments
VMware announced its intent to acquire Lastline on June 4, 2020, with terms undisclosed, and closed the acquisition on June 18, 2020. TechCrunch reported, citing a source, that VMware would lay off roughly 40% of Lastline's employees, about 50 staffers. Lastline's technology was folded into VMware NSX and marketed as VMware NSX Network Detection and Response, and after Broadcom's acquisition of VMware the business became part of Broadcom.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positioned as a provider of AI-powered network and email security and anti-malware research. VMware described Lastline as a pioneer in anti-malware research and AI-powered network detection and response, noting that its team included 15 PhDs and academics and several of the top 10 most published security threat researchers globally.
Technology
Full-system-emulation malware sandbox that inspects every instruction executed by a sample, contrasted with sandboxes that rely on syscall inspection; machine-learning based network analysis that identifies attack behaviors such as lateral movement, command-and-control and exfiltration. VMware stated the system detects twice the number of malicious files as a signature-based system. The user portal presents campaigns, incidents, hosts, timelines, email attachments and an interactive campaign blueprint graph, plus artifact submission for analysis and a knowledge base for intelligence lookups.
Go-to-market
Products were sold directly and through resellers and security service providers, and were integrated into third-party security technologies worldwide.
Businesses, government organizations and security service providers; Global 5000 enterprises, including five of the ten largest financial institutions, and operators of online payments, financial management, ticketing, retail and streaming media applications.
Geography
Headquartered in Redwood City, California, with offices in North America, Europe and Asia. Wikipedia lists the areas served as the United States, Canada, Europe and the Middle East.
History
Founded in 2011 in Redwood City, California by academic researchers from UC Santa Barbara and Northeastern University. In 2014 WatchGuard Technologies joined the Lastline Defense Program, embedding Lastline's cloud sandbox in its UTM and NGFW products, and Juniper Networks began integrating Lastline into its Spotlight Secure platform. The company was featured at the 2014 RSA Conference, and CTO Giovanni Vigna gave a keynote on evasive malware at the Cyber Security Expo that year. In February 2015 Lastline announced a partnership and technology integration with Carbon Black covering endpoint and network protection across email, web, files and mobile applications. In October 2018 John DiLullo was appointed CEO, with co-founder and prior CEO Christopher Kruegel moving to Chief Product Officer. VMware announced its intent to acquire Lastline on June 4, 2020 and closed the transaction on June 18, 2020; the Lastline team joined VMware's NSX organization. Following Broadcom's acquisition of VMware, Lastline is described as part of Broadcom.
Risks & controversies
TechCrunch reported that about 40% of Lastline's staff (roughly 50 people) were expected to be cut as part of the VMware acquisition. Source documents also show inconsistent figures for founding year and total funding (TechCrunch cites a 2012 launch and about $52.2 million raised per Crunchbase, while Wikipedia cites a 2011 founding and roughly $24 million raised as of 2014).
Compiled by commissioned research from 6 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 10
by search overlapCompanies competing with Lastline for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 9
launches, deals, and filingsVMware officially closed its acquisition of Lastline, bringing the team into the NSX business unit.
VMware announced a definitive agreement to acquire Lastline; terms were not disclosed and the deal was expected to close by the end of July 2020.
TechCrunch reported, citing a source, that VMware would let go about 40% of Lastline's employees, roughly 50 staffers, as part of the acquisition.
Lastline named John DiLullo CEO, effective immediately; co-founder and previous CEO Christopher Kruegel transitioned to Chief Product Officer.
Lastline entered the Network Traffic Analytics space with the recently announced Lastline Network Defender product, referenced at the time of the October 2018 CEO appointment.
Lastline announced a partnership with Bit9 + Carbon Black to deliver end-to-end endpoint and network breach protection across email, web, files and mobile applications.
Study covering May 2013 to May 2014 tested malware samples against 47 antivirus vendors' signatures on VirusTotal, finding at least half of scanners failed to detect new malware on any given day and a third still missed it after two months.
Juniper Networks began integrating with Lastline to expand the capability of its Spotlight Secure platform.
WatchGuard joined the Lastline Defense Program, using Lastline's cloud-based full-system-emulation sandbox to provide APT blocking on its UTM and next-generation firewall products.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 6
primary sources listed
- Lastline - Wikipediaen.wikipedia.org · web
6 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Lastline do?
- American network security company offering malware sandboxing and AI-based network detection and response; acquired by VMware in 2020.
- Who founded Lastline?
- Lastline was founded by Giovanni Vigna, Engin Kirda, Christopher Kruegel in 2011.
- Who are Lastline's investors?
- Lastline's investors include Presidio Ventures, Ballistic Ventures, eVentures, NTT Finance, Redpoint Ventures, Thomvest Ventures.
- How much funding has Lastline raised?
- Lastline has disclosed $38.5M raised across 2 of its 6 known rounds.
- Where is Lastline headquartered?
- Lastline is headquartered in Redwood City, US.






