Japanese Companies Unprepared for 'Baito Tero' by Part-Time Employees, Study Reveals

Study Highlights Corporate Vulnerability in Japan

A new study published on February 9, 2026, by Nippon.com, has brought to light a significant vulnerability within Japanese corporations: a widespread lack of preparedness for potential sabotage and inappropriate actions by part-time employees. The research, based on a survey conducted by human-resource service provider Mynavi in December 2025, indicates that a substantial number of companies have already faced such incidents, commonly referred to as 'baito tero'.

The Rise of 'Baito Tero'

The term 'baito tero', a portmanteau of 'arubaito' (part-time work) and 'tero' (terrorism), describes pranks or other inappropriate actions carried out by part-time employees, often disseminated via social media. The Mynavi survey, which gathered 1,500 valid responses from company employees aged 20 to 69 involved in hiring part-time workers, found that 26.3% of companies had experienced 'baito tero' within the most recent year.

Industries Most Affected and Incident Types

The study detailed that certain sectors are particularly susceptible to these incidents. The highest prevalence was observed in 'pachinko parlors, karaoke venues, and internet cafes', with 42.9% of companies reporting issues. This was closely followed by 'manufacturers' production lines' at 40.0% and 'hotels and inns' at 35.7%. The types of incidents varied, ranging from 'thoughtless social media and online posts' and 'pranks' to 'careless handling of information' and more deliberate acts like 'sharing disinformation'.

Widespread Lack of Preparedness

Despite the documented prevalence of 'baito tero', the survey revealed a concerning level of unpreparedness among Japanese companies. While 34.8% of companies had preventative measures in place, a significant 38.1% acknowledged the necessity of such measures but had not yet implemented them. Furthermore, 27.1% of companies indicated that they did not believe such precautions were necessary, suggesting a majority are not adequately protected against these risks.

Implications for Corporate Security

The findings underscore an ongoing challenge for corporate security in Japan. Companies that had experienced incidents were predicted to be twice as likely to face similar cases again, highlighting a cycle of vulnerability. The study suggests that while education and awareness training can improve the situation, robust risk management and compliance measures are often essential to mitigate the impact of 'baito tero'.