 However, they are not precomposed characters and have neither canonical nor compatibility decompositions.This issue has created security considerations since "precomposed" characters like U+019F and sequences like U+004F U+0335 or U+004F U+0336 often cause visual confusion (compare Ɵ and O̵ and O̶).Unicode has acknowledged this issue and has proposed a standardized method for counteraction

Double strikethrough is an option in certain word processing applications such as Microsoft Word.