England used a meeting room at their hotel in Krakow city centre which has a glass ceiling, and a Swedish journalist reportedly used a pair of binoculars to spy on their preparations for a game which they won 3-2.
But Club England managing director Adrian Bevington has denied they will change the way they prepare ahead of the final Group D game against Ukraine on Tuesday when a draw will be enough to put them in the quarter-finals.
Bevington told Sky Sports News: "(The journalist) read the team board and so was able to see some of the plans that we had in place.
"I can't say it's something that's causing us great consternation in the England camp.
"It certainly wasn't a security breach and it didn't affect the result thankfully."
Asked if England would be reviewing security, Bevington said: "No we won't be."
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.
The new PUMA evoSPEED 1.2 FG. A great new soccer cleat with classic look and first time for PUMA to be on the cleat.
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
Bayern Munich are kings of Germany and hope to be crowned kings of Europe at Wembley later this month!
Chelsea won the Europa League on Wednesday. The Blues defeated Benfica 2-1 on injury time goal from Ivanovic.
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.