Software that filters incoming e-mail to look for signs of scams looks for words and phrases commonly used in scams. In order to get past the filters, scammers may misspell such words, or may spell them with some foreign-alphabet characters that resemble the usual letters. It becomes hard to design filters that handle such substitutions.
People who notice spelling mistakes *and* understand that legitimate companies won’t send out official communication using those mistakes probably aren’t going to be convinced anyway. But people who lack both of those qualities are often easier to manipulate, even if they go into the interaction skeptical.
Sorry, IT security researcher. That concept is a myth, they want to craft emails and messages to look like the real source they are spoofing. They often run something through Google Translate and will think that it is errant and “correct” what the translation renders. This is why TOEIC tests give students very close to correct English and ask them to correct it. If it is close to perfect it throws off the ESL reader to want to make changes that make sense via their language base.
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