SeaFlower Malware Targets Web3 Wallets to Steal Seed Phrases

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SeaFlower Malware Targets Web3 Wallets to Steal Seed Phrases

First seen 28 Feb 2026, 16:11 UTC • •26.6

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ThreatCluster •March 12, 2026 at 16:10 UTC

Cybersecurity researchers have identified a sophisticated malware campaign named SeaFlower, which is targeting users of popular Web3 cryptocurrency wallets. The malware embeds stealthy backdoors in cloned applications to silently steal seed phrases and drain victims' funds, marking it as one of the most advanced threats to Web3 users documented to date.

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Updated 213d ago How this analysis works

Timeline

2026-02-26

SeaFlower campaign reported targeting Web3 wallets

2026-02-28

SeaFlower malware identified by cybersecurity researchers

More articles in this cluster (2)

Threat Graph

3 entities, 2 inferred relationships (STIX 2.1).

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Technique (2)

Malware
T1195 - Supply Chain Compromise

Malware (1)

SeaFlower

Relationships

SeaFlower related to Malware
SeaFlower related to T1195 - Supply Chain Compromise

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