Exploring the Impact of Ethnicity on Susceptibility to Voice Phishing
Abstract: Spear phishing is a common, targeted phishing where the attacker uses targets’ relevant information to increase the effectiveness of their attacks. We explore the impact of people’s native language accents on their susceptibility to voice phishing, where the attacker asks for users’ financial information (eg, credit card number). We designed a mixed-methods survey and recruited 140 Prolific participants. Using an AI voice generator, we created two types of English audio prompts (eg, new Medicare card, parcel delivery) with four types of accents (eg, Chinese, Hindi). Each participant was presented with two audio prompts, one with their native language accent and one with no accent (US-English). Our findings showed that, except for Hindi native speakers, participants perceived the no-accent (US-English) prompts as more trustworthy and were significantly more willing to share their sensitive financial information when the prompts were presented in US-English accent.
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