Serious issue that has recently come to my notice regarding a fraudulent journal using a duplicate ISSN number and running a website with the same journal name. Here is a advice always cross-check your manuscript before submission to ensure accuracy and reliability prior to publication.
One of example attached herewith
https://www.scopus.com/sourceid/15286 (coverage discontinued in Scopus)
http://aatcc.peerjournals.net/ (Dummy Journal)