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Hackers Are Calling: The Vishing Campaign Targeting Financial Institutions

Jdsupra • September 9, 2026

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The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Coordinated Vishing Attacks Target Microsoft Teams Users and Financial Institutions A series of coordinated vishing attacks have been reported, primarily targeting Microsoft Teams users and financial institutions. The attackers impersonate legitimate entities to extract sensitive information from victims. The scope of the attack is significant, affecting multiple organizations and potentially thousands of users. The methods employed include phone calls and social engineering tactics to deceive victims into providing personal and financial data. As of now, the attacks are ongoing, with no specific numbers of affected users disclosed. Security professionals are advised to remain vigilant and educate their teams about these tactics. The situation is evolving, with potential for broader impact if not addressed promptly. 2 sources 64

Extracted Entities

Hackers Are Calling: The Vishing Campaign Targeting Financial Institutions

The full story

Extracted Entities

Attack Types (1)

Campaigns (1)

Industries (1)

MITRE ATT&CK (1)