This paper provides an overview of the Verifying Multime-
dia Use task that takes places as part of the 2015 MediaEval
Benchmark. The task deals with the automatic detection of
manipulation and misuse of Web multimedia content. Its
aim is to lay the basis for a future generation of tools that
could assist media professionals in the process of veri ca-
tion. Examples of manipulation include the malicious tam-
pering of images and videos, e.g., splicing, removal/addition
of elements, while other kinds of misuse include the repost-
ing of previously captured multimedia content in a di erent
context (e.g., a new event) claiming that it was captured
there. For the 2015 edition of the task, we have generated
and make available a large corpus of past real-world cases
of images that were distributed through tweets, along with
manually assigned labels regarding their use, i.e. malicious
(fake) versus appropriate (real).