Sure. And that's why people who want anonymous Bitcoin use mixing services. Such as Bitcoin Fog:[0]
> In December 2013 the site was used to launder a part of the 96,000 BTC from the robbery of Sheep Marketplace.
> In February 2015, a total of 7,170 bitcoin was stolen from the Chinese exchange Bter.com and traced back to cryptocurrency-tumblers like Bitcoin Fog.
> In December 2013 the site was used to launder a part of the 96,000 BTC from the robbery of Sheep Marketplace.
> In February 2015, a total of 7,170 bitcoin was stolen from the Chinese exchange Bter.com and traced back to cryptocurrency-tumblers like Bitcoin Fog.
0) https://en.wikipedia.org/wiki/Bitcoin_Fog