What technologies does Pessimistic Security use?

Pessimistic Security uses Gmail, Google Apps, Amazon AWS, Mobile Friendly, Yandex Metrica. View their full technology stack — including all 7 detected tools — on StackWho.

Who is the Founder of Pessimistic Security?

Alexander Seleznev is the Founder at Pessimistic Security. Get verified contact information on StackWho.

Where is Pessimistic Security located?

Pessimistic Security is based in Tallinn, Harju County, Estonia.

Pessimistic Security

pessimistic.io

information technology & services

pessimistic.io

Tallinn, Harju County, Estonia

1-10 employees

LinkedIn Profile

About Pessimistic Security

blockchain, ethereum, smart contracts, security, smart contract audit, smart contract security audit, security tools, security research, it services & it consulting, industry standards compliance, security automation, b2b, security vulnerability identification, vulnerability fix guidance, decentralized application (dapp) security, computer systems design and related services, automated vulnerability detection, blockchain protocol audit, code optimization, cybersecurity

Pessimistic Security's Tech Stack

Decision Makers at Pessimistic Security

1 contact

Alexander Seleznev

Founder

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7 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

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Pessimistic Security's Position in the StackWho Database

• Pessimistic Security is 1 of 194,140 information technology & services companies tracked in StackWho.
• 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
• 1,549 companies in Harju County are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as Pessimistic Security).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does Pessimistic Security use?

Pessimistic Security uses Gmail, Google Apps, Amazon AWS, Mobile Friendly, Yandex Metrica, Google Tag Manager, and 1 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Pessimistic Security?

StackWho has verified email addresses for 1 decision maker at Pessimistic Security. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Pessimistic Security directly for sales, recruiting, or partnerships.

What industry is Pessimistic Security in?

Pessimistic Security operates in the information technology & services industry, headquartered in Tallinn, Harju County, Estonia. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Pessimistic Security's contact data?

Yes. StackWho Pro members can export decision maker contact data for Pessimistic Security and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.