Modern systems typically combine these, with glyph-level substitution being the most common yet least understood.
While substitution cannot be eliminated, its negative effects can be minimized: Font substitution will occur continue
The screen flickered, throwing a stark gray box into the center of the monitor. "Warning: Font substitution will occur. Continue?" It was a small error message, barely a footnote in the grand scheme of the code, but to Elias, it was a confession. The ransom note had been typed on a machine that didn't exist—a ghost font. If he clicked "Continue," he would see the text, but he would lose the digital fingerprint of the killer. He hovered the mouse over the button. Sometimes, perfection was the enemy of the truth. Modern systems typically combine these