en.wikipedia.org/wiki/Victor_Cherkashin

The sentence says Cherkashin joined the KGB in 1952, but multiple sources place his entry into the MGB first and the KGB only later.

Encyclopedia.com's biographical entry states that after graduating in 1952, Cherkashin "first worked for the Ministry for State Security (MGB)" and that "in 1954, the KGB took over the responsibilities of these predecessor agencies, at which point Cherkashin became a KGB officer."

A U.S. State Department historical document likewise notes that the Soviet foreign intelligence apparatus "had been renamed the KGB in 1954."

So the chronology in the article is off by two years: 1952 was the year he entered a predecessor service, not the KGB itself.

This description misstates what the First Chief Directorate was.

Reference works describe the First Chief Directorate as the KGB's external intelligence / foreign operations organization. Encyclopedia.com says Cherkashin was transferred to "the First Chief Directorate, the external intelligence organization of the KGB". A Federation of American Scientists reference page similarly says the First Chief Directorate was responsible for "all international Soviet clandestine activities" and then separately identifies "Counterintelligence Service (Special Service II)" as the unit within it that handled countering foreign intelligence agencies.

So it is inaccurate to define the entire First Chief Directorate as "the department dedicated to foreign counter-intelligence". Cherkashin was a foreign counterintelligence officer within the First Chief Directorate, but the directorate itself had a much broader foreign-intelligence mission.