Optiva Inc. — AGM Information 2024

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Date: May 7, 2024

100 University Avenue, 8th floor Toronto ON, M5J 2Y1 www.computershare.com

To: All Canadian Securities Regulatory Authorities

AMENDED

Subject: OPTIVA INC.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Annual General Meeting - Amended Record Date for Notice of Meeting : May 21, 2024 Record Date for Voting (if applicable) : May 21, 2024 Beneficial Ownership Determination Date : May 21, 2024 Meeting Date : June 25, 2024 Meeting Location (if available) : Virtual Meeting Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN COMMON SHARES 68403N307 CA68403N3076

Sincerely,

Computershare Agent for OPTIVA INC.