  The goal is to study the prevalence of citajacked papers: papers in authentic
scientific journals citing hijacked journals, in academic literature. A
Citejacked detector was designed as a part of the Problematic Paper Screener
(https://www.irit.fr/~Guillaume.Cabanac/problematic-paper-screener/citejacked)
to trace if the references to articles originating from hijacked journals
infiltrate scientific communication. A full-text search was performed between
November 2021 and January 2022 in the Dimensions database using the name of 1
of the 12 hijacked journals. The analysis of the bibliography in these articles
revealed that 828 of them cite unreliable articles from hijacked journals.
During 01.Jan.2021-31.Jan.2022, an average of 2 citejacked articles has been
published daily in established journals. Given the limited number of titles
included in this study, the phenomenon might be wider and is not yet
systematically studied.
