SparkKitty has turned seed phrase security from a basic wallet lesson into a live mobile threat. SparkKitty turns photo access into wallet accessA seed phrase is usually a 12 or 24 word backup that can restore a crypto wallet. Writing a seed phrase by hand and keeping it offline is still better than storing it on a phone. What to do if your seed phrase was stored as a screenshotIf a seed phrase has ever been saved as a screenshot, deleting the image is not enough. It scans phone images with OCR to find sensitive text, including crypto wallet seed phrases.