Japan’s Immigration Services Agency announced plans to monitor social media and other online platforms for information on visa overstayers and illegal foreign workers as part of a crackdown effort starting by 2027 [1, 2, 3].
The agency aims to reduce the number of overstayers amid rising foreign worker intake to fill labor shortages. It will use analytical tools to scan for illegal work solicitations, including posts in foreign languages, and establish a dedicated cyber patrol unit for enforcement [1, 2, 3].
As of January 2026, Japan had about 68,000 illegal stayers, down 6,000 from the previous year, showing some progress but indicating continued challenges [1, 2, 3].
The crackdown will also target employers who hire foreign workers without valid visas, aiming to block illegal employment channels alongside overstayer detection [1, 2, 3]. In mid-2026, the Ibaraki prefectural government launched a program offering rewards of 10,000 yen for tipsters who provide information leading to enforcement actions against businesses employing undocumented foreign workers [1, 2, 3].
While sources agree on the 10,000 yen reward, there are discrepancies in currency conversion: some report it as about US$63, others as S$80 [1, 2, 3].
The Immigration Services Agency seeks to fully implement the social media monitoring tools and cyber patrol unit by 2027 to strengthen enforcement against illegal stays and unauthorized foreign employment [1, 2, 3].
