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OPEN SECURITY ALLIANCE INC

EIN 92-3456081 SAN FRANCISCO, CA

Revenue 2024
$1,165,481
Expenses 2024
$1,184,998

Program services were 84.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
B99
Classification
1000
Street
548 MARKET ST PMB 601471

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

THE ORGANIZATION'S MISSION IS TO IMPROVE THE SECURITY OF EMERGING TECHNOLOGY ECOSYSTEMS.

  • THE INCIDENT RESPONSE "SEAL 911" INITIATIVE CONTINUED TO SHINE IN 2024 AS THEY SPEARHEADED AND ASSISTED ON 1122 TICKETS WHICH WAS A SIGNIFICANT INCREASE FROM 78 TICKETS IN 2023. THE TEAM GREW TO OVER 50 ACTIVE MEMBERS AND STARTED ESTABLISHING DIRECT LINE COMMUNICATION GROUPS WITH KEY PROTOCOL AND APPLICATION LAYER PROJECTS. SEAL 911 STARTED TO GAIN SIGNIFICANT CREDIBILITY ACROSS THE EVM ECOSYSTEM AND BLOCKED >150,000 PHISHING DOMAINS AND SAVED APPROXIMATELY $75M USD. "SEAL INTEL" (PREVIOUSLY KNOWN AS SEAL ISAC) WAS LAUNCHED IN MAY 2024 TO IMPROVE INFORMATION SHARING IN THREAT INTELLIGENCE VIA OPENCTI. IT IS RESPONSIBLE FOR GATHERING, ANALYZING, AND DISSEMINATING INFORMATION ABOUT NEW THREAT ACTORS AND TRENDS. THE NUMBER OF EARLY PARTICIPANTS INVOLVED INCLUDED NEARLY TWO DOZEN BLOCKCHAIN ORGANIZATIONS.THE "SEAL SAFE HARBOR" INITIATIVE WAS PUBLICLY ANNOUNCED IN 2024 AFTER SEVERAL YEARS OF EFFORT AND ASSISTANCE FROM TOP CRYPTO RESEARCHERS AND ATTORNEYS TO WRITE AND REVIEW THE AGREEMENT. IT IS A STANDARD FRAMEWORK THAT PRE-AUTHORIZES WHITEHATS TO RESCUE FUNDS DURING ACTIVE EXPLOITS. THE TEAM HELPED 5 PROTOCOLS TO ADOPT DURING 2024, AND HELPED VARIOUS OTHERS PREPARE THEIR ADOPTIONS. ADDITIONALLY, THE SAFE HARBOR INITIATIVE SETUP INFRASTRUCTURE - CREATING DOCUMENTATION & PUBLIC RESOURCES FOR SAFE HARBOR, AND WORKING WITH VARIOUS OTHER BLOCKCHAIN SECURITY ORGANIZATIONS TO HELP INTEGRATE SAFE HARBOR INTO THEIR PLATFORMS.THE "SEAL WARGAMES" INITIATIVE BEGAN IN MID-2023 WITH THE GOAL OF PREPARING PROTOCOL TEAMS FOR INCIDENT RESPONSE THROUGH HANDS-ON TRAINING. IN 2024 WARGAMES COMPLETED 10 DRILLS WITH 5 PROTOCOLS INCLUDING SOME OF THE LARGEST DEFI, LIQUID STAKING, AND LAYER 2 NETWORKS IN THE ECOSYSTEM. THE WARGAMES INITIATIVE ALSO RELEASED OPEN SOURCE TOOLKITS, INFRASTRUCTURE, AND TRAINING MATERIALS TO SHARE LEARNINGS AND BEST PRACTICES FOR INCIDENT PREPARATION AND RESPONSE WITH THE BROADER COMMUNITY.SECURITY ALLIANCE (SEAL) LEADERSHIP AND INITIATIVE LEADS ALSO HOSTED AND SPOKE AT EVENTS DURING THE 2024 YEAR. THIS INCLUDED HOSTING THE ANNUAL SEAL ASSEMBLY IN BELGIUM WHERE THERE WERE APPROXIMATELY 100 GUESTS THAT INCLUDED DONORS, CONTRIBUTORS, AND TOP LEVEL SECURITY RESEARCHERS. THE TEAM HOSTED A HACKATHON AT DEVCONNECT AND GAVE MULTIPLE CYBERSECURITY PRESENTATIONS AT THE DEFI SECURITY SUMMIT AND DEVCONNECT EVENTS.

    Expenses $1,004,528 · Grants $100,000

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • REBECCA RETTIG

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

  • MILES JENNINGS

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

  • MICHAEL MOSIER

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

  • DAVID THEODORE

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

  • BRENDAN MALONE

    DIRECTOR

    Total calculated
    $0
    Hours/week
    0.25

  • SAMCZ SUN

    CHIEF EXECUTIVE OFFICER

    Total calculated
    $0
    Hours/week
    40

  • DAVID DESJARDINS

    CHIEF OF STAFF

    Total calculated
    $66,082
    From this org
    $66,082
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $1,165,481
    Expenses
    $1,184,998
    Contributions
    $1,111,007
    Grants paid
    $100,000
  • 2023
    Revenue
    $597,505
    Expenses
    $369,783
    Contributions
    $620,556
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Grants made

Where these grants went next →

Grants received

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 29 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.