Place cucumbers on a cutting board and smash with a rolling pin or heavy pan until they crack open.
Cut smashed cucumbers into bite-sized pieces and place in a colander.
Sprinkle salt over cucumbers and toss to coat. Let drain for 10 minutes.
While cucumbers drain, combine minced garlic, soy sauce, rice vinegar, sesame oil, and sugar in a large bowl.
Pat cucumbers dry with paper towels to remove excess moisture.
Add cucumbers to the dressing bowl and toss until evenly coated.
Let salad sit for 10 minutes to allow flavors to meld.
Transfer to serving dish and top with toasted sesame seeds and chopped cilantro.
