The goalkeeper pulled no punches in his assessment of his nation's performance, with the reminder that they could have paid the price for a disappointing performance in Torshavn
The hosts hit the post on two occasions as the 32-year-old reminded the Azzurri that they cannot afford to play so poorly against tougher opposition.
"This [match] will serve as a lesson to us," said Buffon in the post-match interview. "Some games you can win easily, but the smallest of lapses can complicate affairs and then you can lose important points."
The World Cup winner then proceeded to take the positives out of the fixture, mentioning the significance of picking up three points, and the continued development of their youthful squad.
"The main thing is that we have taken the three points," insisted Buffon after the match. "The first 10 minutes were very productive, as we had many opportunities but then we complicated things a little.
"The team is very young and people must realise that even against lesser teams, you can suffer and pay the price in your approach to the game."
Cesare Prandelli's men are now on the cusp of securing qualification for Euro 2012 from Group C and will face Slovenia on September 6.