Abstract:URL shortening services enable us to shorten or simplify URLs. Ad-based URL shortening services display advertisements to users who access short URLs and reward short URL creators. However, ad-based URL shortening services have specific security risks that URL shortening services without ads do not, such as displaying malicious advertisements to users. In this study, we reveal previously unknown security risks of these services caused by users' behaviors. We conducted a comprehensive measurement of ad-based UR… Show more
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