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Excel security is a myth: Passwords and hidden rows won't save your data, but this will

From hidden rows to sheet protection passwords, Excel's "privacy" features are easily bypassed—encryption and deletion are much more watertight.
IEEE

Copy-Move image forgery detection and classification using SIFT and DBSCAN Approaches

Abstract: In the digital area, images play vital role which carries important information. Therefore, identification and classification of the tampered region and genuine region from an image is a ...