Hyundai Group evacuated employees from two major offices in Seoul today after receiving a bomb threat email demanding payment in bitcoin, police said. 

Authorities later confirmed the threat was a hoax, but the incident added to growing concern over a recent wave of extortion, crypto and non-crypto related, threats targeting South Korea’s largest companies.

According to local reports, a 112 emergency call was received at about 11:42 a.m. The caller relayed the contents of an email sent to Hyundai. The message said an explosive device would be detonated at Hyundai Group’s building in Yeonji-dong, Jongno-gu, at 11:30 a.m.

It added that a second bomb would be taken to Yangjae-dong,…

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