OptMsg Breach Breakdown: KDDI
Accounts Impacted: Up to 14.22 million email account records across Japan Breach Occurrence Date: June 17, 2026 Added to Breach […]
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OptMsg Breach Breakdown: LastPass
Accounts Impacted: An undisclosed number of LastPass corporate and personal customer records Breach Occurrence Date: June 2026 Added to Breach
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OptMsg Breach Breakdown: Oxford University
Accounts Impacted: Students, alumni, and recruiters at Oxford, Cambridge, and other GTI-partner universities Breach Occurrence Date: Late May 2026 Added
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Reverse Email Lookup: Safe Ways to Identify Unknown Senders (and Stop Them for Good)
This guide explains safe reverse email lookup methods to identify unknown senders, warns against unverified tools, details email safety tips, and highlights OptMsg’s opt-in system for secure, spam-free inbox control.
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OptMsg Breach Breakdown: Carnival
Accounts Impacted: Nearly 6 million (5,995,277 individual travelers) Breach Occurrence Date: April 2026 Publicly Confirmed: Late May 2026 Added to
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What Is Phishing? A Simple Guide to Spot, Block, and Stay Safe
Phishing tricks users by posing as trusted entities to steal data. Recognize red flags, use strong security practices, and consider secure services like OptMsg to block phishing and protect your inbox.
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OptMsg Breach Breakdown: Trump Mobile
Accounts Impacted: Estimated 30,000 T1 pre-order customers Breach Occurrence Date: May 2026 Publicly Confirmed: May 22, 2026 Added to Breach
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OptMsg Breach Breakdown: Zara
Accounts Impacted: Approximately 197,400 unique customer accounts Breach Occurrence Date: April 2026 Data Published by ShinyHunters: April 22, 2026 Added
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OptMsg Breach Breakdown: Vimeo
Accounts Impacted: Approximately 119,200 unique user accounts Breach Occurrence Date: April 2026 Added to Breach Breakdown: May 2026 The Vimeo
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OptMsg Breach Breakdown: Canvas
Accounts Impacted: Up to 275 million students, teachers, and staff across 8,809 institutions worldwide Breach Occurrence Date: April 29, 2026
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OptMsg Breach Breakdown: CarGurus
The Panera Bread breach in December 2025 exposed 5.1 million customer names, emails, phone numbers, and home addresses.
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OptMsg Breach Breakdown: Canadian Tire
Accounts Impacted: Approximately 38.3 million unique customer accounts; 42 million total records Breach Occurrence Date: October 2, 2025 Added to
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