William is an information security professional with various professional information technology and security certifications. These certifications include CISSP-ISSAP, CISA, CISM, CDPSE, TOGAF9 and various vendor specific certifications.
William 是一名資訊保安專家，擁有各種專業的資訊科技和資訊保安證書。 這些證書包括 CISSP-ISSAP、CISA、CISM、CDPSE、TOGAF9 和一些設備供應商特定的證書。
