More than three-quarters (77%) of healthcare companies have 500 or more accounts with passwords that never expire, while 79% have more than 1,000 ghost users — user and service accounts that are inactive but still enabled, according to new Varonis research. The data security report, which analyzed 3 billion files across 58 hospitals, pharmaceutical firms, and biotechnology companies, also found nearly 20% of all files are accessible to every employee.

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